-cp <class search path of directories and zip/jar files>
-classpath <class search path of directories and zip/jar files>
A ; separated list of directories, JAR archives,
and ZIP archives to search for class files.
-D<name>=<value>
set a system property
-verbose[:class|gc|jni]
enable verbose output
-version      print product version and exit
-version:<value>
require the specified version to run
-showversion  print product version and continue
-jre-restrict-search | -jre-no-restrict-search
include/exclude user private JREs in the version search
-? -help      print this help message
-X            print help on non-standard options
-ea[:<packagename>…|:<classname>]
-enableassertions[:<packagename>…|:<classname>]
enable assertions
-da[:<packagename>…|:<classname>]
-disableassertions[:<packagename>…|:<classname>]
disable assertions
-esa | -enablesystemassertions
enable system assertions
-dsa | -disablesystemassertions
disable system assertions
-agentlib:<libname>[=<options>]
load native agent library <libname>, e.g. -agentlib:hprof
see also, -agentlib:jdwp=help and -agentlib:hprof=help
-agentpath:<pathname>[=<options>]
load native agent library by full pathname
-javaagent:<jarpath>[=<options>]
load Java programming language agent, see java.lang.instrument
-splash:<imagepath>
show splash screen with specified image

The post Java Command Line Options appeared first on scmGalaxy.

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Walkthrough: Creating an MSBuild Project File from Scratch

How to: Write a Simple MSBuild Project

MSBuild Basics

Build Your Project File from Scratch using MSBuild

The post MSBuild Tutorial Reference for Beginner | MSBuild Learning Resources | scmGalaxy appeared first on scmGalaxy.

The post Jenkins useful websites references | Jenkins Resources | scmGalaxy appeared first on scmGalaxy.

Gerrit Performance CheatSheet

The post Gerrit useful website reference | Gerrit Performance CheatSheet appeared first on scmGalaxy.

Grep will return 0 while the build is running:

$ curl http://myjenkins/job/myjob/lastBuild/api/json | grep –color result\”:null

$ echo $?

Trigger a Jenkins Job from command line

$ wget http://yourserver/job/MyJobname/build?delay=0sec

$ wget -O – $HUDSON_URL/job/JOBNAME/build

Trigger a Jenkins Job without authentication

$ curl http://jenkins:8080/job/my%20job/build

Trigger a Jenkins Job with authentication

$ curl –user dbacher:$MY_API_TOKEN http://jenkins:8080/job/my%20job/build

$ curl –user <your_jenkins_username>:<your_jenkins_API_key> http://<jenkins_server_url>/job/<your_jenkins_job_name>/build

Running commands against a secure Jenkins (basic auth or ssh keys)

$ java -jar jenkins-cli.jar -s http://myjenkins help –username me –password mypassword

$ java -jar jenkins-cli.jar -s http://myjenkins help -i ~/.ssh/id_rsa

Triggering a job build against a secure Jenkins (avoiding a 1.5 year old open bug!)

$ java -jar jenkins-cli.jar -s http://myjenkins build ‘My Awesome Jenkins Job’ -i ~/.ssh/id_rsa

$ java -jar jenkins-cli.jar -s http://myjenkins build ‘My Awesome Jenkins Job’ -i ~/.ssh/id_rsa -s -v

Passing parameters when triggering a job build

$ java -jar jenkins-cli.jar -s http://myjenkins build ‘Deploy XYZ App’ -i ~/.ssh/id_rsa -s -v -p target_env=api.cloudfoundry.com -p branch=master

Reference

http://starkandwayne.com/articles/2013/04/12/jenkins-builds-from-cli/

http://www.scmgalaxy.com/index.php?option=com_k2&view=item&id=890:ways-to-login-jenkins-using-command-line&Itemid=120

Appendix

1. How to get your_jenkins_API_key?

• Login to your Jenkins.
• Click on the username in the top right.
• Click on Configure.
• Click on ‘Show API Token’ button.
• You got it.

The post Jenkins Command line Reference for login and trigger a job appeared first on scmGalaxy.

Commonly Used Sign- Punctuation and their Name in Perl

The post Commonly Used Sign- Punctuation and their Name in Perl appeared first on scmGalaxy.

General Commands Not Used Frequently
cal – The Calender
bc – The Calculator
file – knowing the file types
cmp – Comparing two files.
comm – Common in two files
dos2unix and unix2dos – Converting between dos and unix
stat – Display file or file system status such as Access, Modify,Change, users and more
# stat <fileName> unix Command

General Commands Frequently Used
Script – recording your session
Passwd – change your password
Echo  – Displaying the message
Printf – Displaying the message
who – Who are the Users
who am I – To know my user name
uname – Knowing your machine characteristics
# uname –a  – To Print all info.
tty – knowing your terminal
pwd – Checking Current Directory
cd – changing the current Directory
mkdir – Making directories
rmdir – removing directories
ls – Listing Directory Contents
# ls –F – Marks executables with *, directories with / and symbolic links with @ at the end of file name.
# ls – a – Shows all filesnames including beginning with a dot.
# ls –R – Recursive display list of files and folders
# ls -1 – one filename in each line
# ls –l long listing + time of last file modification
# ls –t Sorts filenames by last modification time
# ls –u – Sorts filenames by last access time
# ls –I – Displays inode number
# ls –lc – Time of last inode modifcation

Cat – Displaying and creating Files
# cat filename – Displaying file contents
# cat –n filename – Displaying file contents with line numbers
# cat > filename – To Create a file name

More – Paging Output
# more filename – To to display the filename contents

Less – Paging Output

wc – Counting lines, Words and Characters
# -l – Option counts only the number of lines
# -w – Option counts only the words.
# -c – Options counts only the characters.

cp – copying a files
Options
# -p – Copy the files including preserve the mode, ownership and permissions.
# -R – Copying Directory Structure

gzip and gunzip – Compressing and Decompressing Files
# gzip filename
# gzip –l – To find out how much of the compression was archived.
# gzip –d filename – To Decompress a file
# gunzip filename – To Decompress a file
# gzip –R dir – To Compress Recursive

Tar – The archival Program
# -c – To create a archive
# -x – Extract files from archive
# -t – Display fils in archive
# -v – verbose
# -f – name of the arch filename .tar
# tar –cvf filename.tar filename1 filename2
# tar –xvf filename.tar

Create tar and gzip
# tar cvf – foodir | gzip > foo.tar.gz

Un-tar and gunzip
# tar -zxvf apache-activemq-5.1.0-bin.tar.gz

Un-tar and uncompress using gunzip
# gunzip -c apache-activemq-5.1.0-bin.tar.gz | tar xvf –
or alternatively:
# gunzip apache-activemq-5.1.0-bin.tar.gz | tar xvf –

File Attributes
chmod – Changing File Permission

Abbreviations Used by chmod

Example:
# chmod u+x filename
# chmod u+x filename
# chmod ugo+x filename
# chmod u+x filename1 filename2 filename3
# chmod a-x,go+r filename
# chmod 566 filename
# chmod 755 filename
# chmod –R 755 .
# chmod –R a+x *

Chown – Changing File Ownership
# chown username filename
More example needed.

Shell’s Wild-Cards

Ps – Process Status
Options to ps

Example
# ps -ef
# ps –u sumit
# ps –a
# ps –e
# ps -A – ps command will report a snapshot of the current processes. To select all processes use the -A
# ps -Al – Show Long Format Output
# ps -AlF – To turn on extra full mode (it will show command line arguments passed to process):
# ps axu – Print All Process On The Server
# ps -U vivek -u vivek u – See Every Process Running As User Vivek
# ps -p 55977 -o comm= – Display The Name of PID 55977
# ps -auxf | sort -nr -k 4 | head -10 – Find Out The Top 10 Memory Consuming Process
# ps -auxf | sort -nr -k 3 | head -10 – Find Out top 10 CPU Consuming Process

# $! – Store the PID of the last background jobs
# echo $$  – To Know the PID of current Shell
# echo $SHELL – To Know the Current Shell
# System process easily identifies the ? in the TTY coloumn.
# Mechanism of Process Creation
Fork
Exec
Wait

& and nohup – Ruunning jobs in background
# nohup sort emp.lst $

nice – Job execution with low priority
Kernel decides how much processor time is required for a process based on the nice value. Possible nice value range is: -20 to 20. A process that has a nice value of -20 is very high priority. The process that has a nice value of 20 is very low priority.
Use ps axl to display the nice value of all running process as shown below.
# ps axl
# nice command is used with & operator to reduce the priority of jobs
# nice script.sh &
# ./nice-test.sh &                             Default the nice value of 0
# nice -10 ./nice-test.sh &            Nice value is 10                 Low priority.
# nice –10 ./nice-test.sh &          Nice value is -10                High priority.

Kill – killing the process
# kill PID
# kill PID1 PID2 PID3
# kill $i – Killing the last background process
# kill –s KILL PID – recommended way for killing (SIGKILL)
# kill -9 PID – same as above but not recommended. (SIGKILL)
# kill -9 $$  -$$ store the PID of current shell
# kill –s KILL 0 – kill all the process including the login shell.
# kill –l – To View the list of all signal names and numbers that are available on your machine.
# kill %1 – Kill first background jobs

Jobs
List the background jobs in following fashion
[3] +       running                                command
[1] –        running                                command
[2]          running                                command

bg – Convert Jobs to background
# if you have invoked a command and the prompt has not yet return, you can suspend the job by pressing Ctrl-Z. Observe that job has not been terminated yet; its onl y suspended (“stopped”). Now you can use bg command to push the current foreground job in the background.
# bg %2 – Sends second job to background
# bg %sort – Sends sort job to background

fg – bring background job to foreground
# fg – To bring most recent job to forground
# fg %1 – Bring First job to foreground
# fg %2 – Bring second job to foreground
# fg %sort – Bring sort job to foreground

at – On time execution
# at 14:08
at > script.sh
[ctrl-d]

Batch – execute when system resources are available
# batch < script.sh

Cron – Schedule and run jobs periodically
# crontab –e – To Edit the cron tab
# crontab –l – To Display the cron tab
# crontab cron.tx – cron.txt contains cron commands
# crontab –r – To Remove the cron

Format of crontab – TODO

Customizing the environment

# set – set statemtent display a complete list of all environment variable
# PATH =$PATH:/usr/xpg4/bin – Adding new value to old values
# PS1 =”C> “ – To Change the prompt
# PS1=’[$PWD] ‘ – To Change the prompt to pwd
# alias cp=”cp –I” – To Set the alias in bash
# history – To See the history
# IFS – Field Separators for commands and arguments
# !! – Repeat Previous commands
# !2 – Repeat commands 2 from history output
# !-2 – Execute the commands prior to previous one
# !v – Execture very last commands beginning withg v
# $_ – Using last arugement of previous commands
# mkdir raj
# cd $_

ln – Hard Links and Softlinks
# ln /usr/bin/perl  /usr/local/bin/perl – To create a hard links from src to dest
# ls –I  – To Display the node number of files
# ln –s /usr/bin/perl  /usr/local/bin/perl – To Create a soft link

umask – default file and directory permission
# When you create a files and directories, the permission assigned to them depends on rge system’s default setting..
# unix has default 666 for regular files & 777 for directories
# umask –ENTER
# 022
This is an octal number which has to be subtracted from system default to obtain the actual default. This becomes 644 (666-022) for ordinary files and 755 ( 777 -022) for directories.
# User can set the umask such as umask 023.

touch – Changing the time stamp
# touch emp.lst – Create a file name called emp.lst
# touch 02161430 emp.lst – To Change the time stamp of file for MMDDhhmm format
# touch –a 02161430 emp.lst – To Change the access time stamp of file for MMDDhhmm format
# touch –m 02161430 emp.lst – To Change the modification time stamp of file for MMDDhhmm format

find – Locating files

Expression Used by find.

Example

Change File Permissions Recursively
# find . -type f -exec chmod 644 {} \;
# find . -type d -exec chmod 755 {} \;
# find . -name Configuration.php -exec chmod 666 {} \;

Find files modified in the last 48 hours, and in current folder and one level below
# find -maxdepth 2 -type f -mtime -2

To find all files modified in the last 24 hours (last full day) in a particular specific directory and its sub-directories:
# find /directory_path -mtime -1 –print

To find all files with regular file types only, and modified in the last 24 hours (last full day) in current directory and its sub-directories:
# find /directory_path -type f -mtime -1 –print
# find . -type f -mtime -1 –print

To find all files that are modified today only (since start of day only, i.e. 12 am), in current directory and its sub-directories:
# touch -t `date +%m%d0000` /tmp/$$
# find /tmefndr/oravl01 -type f -newer /tmp/$$
# rm /tmp/$$

To find all files in /home/user/demo directory
# find /home/user/demo -type f –print

To find all files in /home/user/demo directory with permission 777, enter:
# find /home/user/demo -type f -perm 777 –print

Apply new permission using the -exec option as follows:
# find /home/user/demo -type f -perm 777 -print -exec chmod 755 {} \;

To select directories and subdirectories use the following syntax:
# find /var/www/html -type d -perm 777 -print -exec chmod 755 {} \;

This first Linux find example searches through the root filesystem (“/”) for the file named “Chapter1”. If it finds the file, it prints the location to the screen.
# find / -name Chapter1 -type f –print

A nice thing to know is that on Linux systems and modern Unix system you no longer need the -print option at the end of the find command, so you can issue it like this:
# find / -name Chapter1 -type f

This next find command searches through the /usr and /home directories for the file named Chapter1:
# find /usr /home -name Chapter1 -type f

To search in the current directory, and all subdirectories, just use the . character to reference the current directory in your find commands, like this:
# find . -name Chapter1 -type f

This next command searches through the /usr directory for all files that begin with the letters Chapter, followed by anything else. The filename can end with any other combination of characters. It will match filenames such as Chapter, Chapter1, Chapter1.bad, Chapter-in-life, etc.:
# find /usr -name “Chapter*” -type f

This next command searches through the /usr/local directory for files that end with the extension .html. These file locations are then printed to the screen.
# find /usr/local -name “*.html” -type f

To find all directories named build under the current directory, use this command:
# find . -type d -name build

This command searches through the htdocs and cgi-bin directories for files that end with the extension .cgi. When these files are found, their permission is changed to mode 755 (rwxr-xr-x). This example shows that the find command can easily search through multiple sub-directories (htdocs, cgi-bin) at one time.
# find htdocs cgi-bin -name “*.cgi” -type f -exec chmod 755 {} \;

Find and display files last modified les than 90 days ago.
# find . -name “*” -mtime -3 -print

find everything in your home that has been modified more recently than “abc.txt”:
# find $HOME -newer ~joeuser/lastbatch.txt

For finding only files from all directories recursively
# find ./ -type f | wc -l

For finding only files from all directories recursively
# find ./ – type d | wc -l

How to Return a message when a file is not found using find command? OR
Find command return type OR
when the file is not found i want it to return some value OR
# find . -name raj.txt > raj.txt
# counter= `cat abc.txt | wc -l’
# if [$counter -gt 0]
# then
#                echo “File is found”
# else
#                echo “File is not found”
# fi
That’s nice, but what if I want to see the last modification time of these files, or their filesize? No problem, I just add the “ls -ld” command to my find command, like this:
find . -name “*.pl” -exec ls -ld {} \;

Count Total number of files in Directory and Subdirectory
# find . -type f | wc –l

Count Specific extention files in Directory and Subdirectory
# find . -type f -name \*.mnp |wc –l

Count only Directory
# find . -type d | wc –l

head – Displaying the beginning of a file
# head –n 3 filename
# vi `ls –t` | head –n 1` – Opens last modified file for editing

tail – Displaying the end of a file
# tail -3 filename
# tail –f filename             Monitering file live

Cut
# cut –c 6-12,24-32 filename – Cutting column
# cut –d \| -f 2,3 filename            – Cutting fields
# cut –d “|” –f 1,4- filename –To cut out the fields numbered 1,4,5 and 6.

Sort – Ordering a file
Sort Options

Examples:
# sort –t”|” –k 2 shortlist
# sort –t”|” –r –k 2 shortlist
# sort –t “|” –k 3,3 –k 2,2 shortlist
# sort –t”|” –k 5.7,5.8 shortlist
# sort numfile
# cut –d”|” –f3 filename | sort –u
# sort –m foo1 foo2 foo3

Uniq – Locate repeated and non-repeated lines
# sort dept.lst | uniq
# cut –d”|” –f3 emp.lst | sort | uniq –u                                 ( -u selects only lines which is not repeated)
# cut –d”|” –f3 emp.lst | sort | uniq –d                                 ( -d selects one copy of repeated lines)
# cut –d”|” –f3 emp.lst | sort | uniq –c

tr – Translating characters
# tr ‘|/’ ‘~-‘ < emp.lst | head –n 3             – To replace the | with a ~ and the / with a  -.
# head –n 3 emp.lst | tr ‘[a-z]’ ‘[A-Z]’     – Change first three lines from lower to upper.
# tr –d ‘|’ < emp.lst | head –n 3                                – To deleting characters

grep – Searching for a pattern
# grep “director” filename1 filename2
# grep “Rajesh Kumar” filename1
# grep –i ‘rajesh’ filename1                                         To Ignore case
# grep –v ‘rajesh’ filename1 > filename2                              To Select all except lines containing patterns
# grep –n ‘rajesh’ filename1                                       To Display line numbers
# grep –c ‘rajesh’ filename                                          Counting line containing pattern
# grep –l ‘rajesh’ *.lst                                                    -l options display only the name of files containing pattern
# grep –f pattern.lst emp.lst                                       Taking patterns from files

Grep a file, but show several surrounding lines?

For BSD or GNU grep you can use -B num to set how many lines before the match and -A num for th number of lines after the match.
grep -B 3 -A 2 foo README.txt

If you want the same amount of lines before and after you can use -C num.
grep -C 3 foo README.txt
This will show 3 lines before and 3 lines after.

Basic Regular Expression tables

Example:
# grep “[aA]g[ar][ar]wal filename
# grep “[aA]gg*[ar][ar]wal” filename
# grep “j.*Saxena” filename
# grep “^2” filename
# grep “7…$” filename
# grep “^[^2]” filename
# grep –E “[aA]gg?arwal” filename
# grep –E ‘sengupta|dasgupta’ filename
# grep –E ‘(sen|das)gupta’ filename

Editor
Awk  – http://www.thegeekstuff.com/2010/01/awk-introduction-tutorial-7-awk-print-examples/
Sed
vi

# sed – The Stream Editor
# sed ‘3q’ filename == head –n 3                              Quit after line number 3
# sed –n ‘1,2p’ filename                                                               Prints the first 2 lines. Must use –n with p
# sed –n ‘$p’ filename                                                   print last line
# sed –n ‘9,11p 7,9p $p’ filename
# sed –n ‘3,$ip’ filename                                              Don’t print line 3 to the end, display only line 1 and 2

# sed –n ‘/director/p’ filename                                 To print the lines which has pattern in filename
# sed –n ‘/dasgupta/,/saksena/p’ filename
# sed –n ‘1,/dasgupta/p’ filename
# sed –n ‘/[aA]gg*[ar][ar]wal/p’ filename
# sed –n ‘/sa[kx]s*ena/p /Gupta/p’ filename
# sed –n ‘/50…..$/p’ filename

# sed –n ‘director/w  dlsit’ filename
# sed –n ‘director/w dlist /manager/w mlist /executive/w elist’ filename
# sed –n ‘1,500w foo1 501,$w foo2’ filename

# sed ‘1i\
> #include <stdio.h>\
> #include<unistd.h>
>’ foo.c  >> $$                                                                    Include these include on beginning of the program
# sed ‘a\

‘ filename                                                                            # insert after every line this blank line
# sed “/director/d’ filename > filename2              -n option not to be used with d
== # grep –v “director” filename > filename2
# sed –n ‘/director/!p’ filename1 > filename2

# sed ‘s/|/:/’ filename | head -2
# sed ‘s/|/:/g’ filename | head -2
# sed ‘1,3s/|/:/g’ filename
# sed ‘1,5s/director/member /’ filename
# sed ‘s/^/2’ filename
# sed ‘s/$.00/’ filename

Sed tables

Vi – Editor                           

IMPORTANT – YOU SHOULD USE DOUBLE QUOTES ONLY WHEN PARAMETER EVALULATION OR command substitution is embedded within command

Write about command “w”

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Recommended Books for Maven

http://www.maestrodev.com/wp-content/uploads/2012/03/betterbuildswithmaven-2008.pdf

The post Recommended Books for Maven | Good books for Maven learning appeared first on scmGalaxy.

Maven CLI Options Reference

The post Maven CLI Options Reference – Command Line | Maven Command Line Cheatsheet appeared first on scmGalaxy.

Build and Release Engineer Jobs | Build Engineer Jobs | Clearcase Administrator Jobs | Configuration Engineer Jobs | SCM Administrator Jobs | Release Engineer Jobs | Perforce Administrator Jobs | Subversion Jobs | Github Jobs | SCM Engineer Jobs |

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iostat reports CPU, disk I/O, and NFS statistics.

mpstat reports processors statictics.
vmstat reports virtual memory statistics.

vxstat – This Utility can be used as well.

iostat reports CPU, disk I/O, and NFS statistics.

The iostat command generates two types of reports, the CPU Utilization report and the Device Utilization report. The first report generated by the iostat command is the CPU Utilization Report.

The report has the following format:

%user – Show the percentage of CPU utilization that occurred while executing at the user level (application).
%nice – provides statistics on a per physical device or partition basis.
Device – This column gives the device name
tps – Indicate the number of transfers per second that were issued to the device. A transfer is an I/O request to the device.
Blk_read/s – Indicate the amount of data read from the drive expressed in a number of blocks per second.
Blk_wrtn/s – Indicate the amount of data written to the drive expressed in a number of blocks per second.
Blk_read – The total number of blocks read.
Blk_wrtn – The total number of blocks written.
kB_read/s – Indicate the amount of data read from the drive expressed in kilobytes per second.
kB_wrtn/s – Indicate the amount of data written to the drive expressed in kilobytes per second.
wrqm/s – The number of write requests merged per second that were issued to the device.
r/s – The number of read requests that were issued to the device per second.
w/s – The number of write requests that were issued to the device per second.
rsec/s – The number of sectors read from the device per second.
wsec/s – The number of sectors written to the device per second.
await – The average time (in milliseconds) for I/O requests issued to the device to be served.
svctm – The average service time (in milliseconds) for I/O requests that were issued to the device.
%util – Percentage of CPU time during which I/O requests were issued to the device.

vmstat reports virtual memory statistics.

The report has the following format:

Procs – r: Total number of processes waiting to run
Procs – b: Total number of busy processes
Memory – swpd: Used virtual memory
Memory – free: Free virtual memory
Memory – buff: Memory used as buffers
Memory – cache: Memory used as cache.
Swap – si: Memory swapped from disk (for every second)
Swap – so: Memory swapped to disk (for every second)
IO – bi: Blocks in. i.e blocks received from device (for every second)
IO – bo: Blocks out. i.e blocks sent to the device (for every second)
System – in: Interrupts per second
System – cs: Context switches
CPU – us, sy, id, wa, st: CPU user time, system time, idle time, wait time

mpstat reports processors statictics.

reports processors statictics(mpstat – Report processors related statistics and mpstat displays CPU statistics )

mpstat :- mpstat displays CPU statistics
mpstat -A :- Display all information
mpstat -P ALL :- Display CPU statistics of individual CPU (or) Core

Reference:
http://www.linux-tutorial.info/modules.php?name=ManPage&sec=1&manpage=iostat
http://www.thegeekstuff.com/2011/07/iostat-vmstat-mpstat-examples/

The post Linux Performance Monitoring using iostat, mpstat and vmstat | Linux Performance Monitoring Guide appeared first on scmGalaxy.

UNIX SED Introduction

· Sed is a “non-interactive” stream-oriented editor. Since its an “non-interactive” it can be used to automate editing.

· This allows you to edit multiple files, or to perform common editing operations without opening VI or emacs.

· Sed reads from a file or from its standard input and outputs to its standard output.

· Sed has two buffers which are called pattern buffer and hold buffer. Both are initially empty.

UNIX Sed Working Method

This is called as one execution cycle. Cycle continues till end of file/input is reached.

1. Read a entire line from stdin/file.

2. Removes any trailing newline.

3. Places the line, in its pattern buffer.

4. Modify the pattern buffer according to the supplied commands

5. Print the pattern buffer to stdout.

Printing Operation in Sed

Linux Sed command allows you to print only specific lines based on the line number or pattern matches. “p” is a command for printing the data from the pattern buffer.

Syntax:

# sed -n ‘ADDRESS’p filename

# sed -n ‘/PATTERN/p’ filename

Create the txt file sample.txt that will be used in all examples below.

# cat sample.txt

1. Linux – Sysadmin, Scripting etc.

2. Databases – Oracle, mySQL etc.

3. Hardware

4. Security (Firewall, Network, Online Security etc)

5. Storage

6. Cool gadgets and websites

7. Productivity (Too many technologies to explore)

8. Website Design

9. Software Development

10.Windows- Sysadmin, reboot etc.

Sed Address Format 1: NUMBER

This will only match Nth line in the input.

#sed –n ‘N’p filename

For example, 3p prints 3^rd line of the input file sample.txt as below

# sed -n ‘3’p thegeekstuff.txt

3. Hardware

Sed Address Format 2: NUMBER1~NUMBER2

M~N with “p” command prints every Nth line starting from line M.

# sed -n ‘M~N’p filename

For example, 3~2p prints every 2nd line starting from 3rd line as shown below.

# sed -n '3~2'p thegeekstuff.txt

3. Hardware

5. Storage

7. Productivity (Too many technologies to explore)

9. Software Development

Sed Address Format 3: START,END

M,N with “p” command prints Mth line to Nth line.

# sed -n ‘M,N’p filename

For example, 4,8p prints from 4th line to 8th line from input file thegeekstuff.txt

# sed -n ‘4,8’p thegeekstuff.txt

4. Security (Firewall, Network, Online Security etc)

5. Storage

6. Cool gadgets and websites

7. Productivity (Too many technologies to explore)

8. Website Design

Sed Address Format 4: ‘$’ Last Line

$ with “p” command matches only the last line from the input.

# sed -n ‘$’p filename

For example, $p prints only the last line as shown below.

# sed -n '$'p thegeekstuff.txt

10.Windows- Sysadmin, reboot etc.

Sed Address Format 5: NUMBER,$

N,$ with “p” command prints from Nth line to end of file.

# sed -n ‘N,$p’ filename

For example 4,$p prints from 4th line to end of file.

# sed -n '4,$p' thegeekstuff.txt

4. Security (Firewall, Network, Online Security etc)

5. Storage

6. Cool gadgets and websites

7. Productivity (Too many technologies to explore)

8. Website Design

9. Software Development

10.Windows- Sysadmin, reboot etc.

Sed Pattern Format 1: PATTERN

PATTERN could be unix regular expression. The below command prints only the line which matches the given pattern.

# sed -n /PATTERN/p filename

For example, following prints the line only which matches the pattern “Sysadmin”.

# sed -n /Sysadmin/p thegeekstuff.txt

1. Linux - Sysadmin, Scripting etc.

10.Windows- Sysadmin, reboot etc.

Sed Pattern Format 2: /PATTERN/,ADDRESS

# sed -n ‘/PATTERN/,Np’ filename

For example, following prints lines which matches the pattern to Nth line, from input. 3rd line matches the pattern “Hardware”, so it prints from 3rd line to 6th line.

# sed -n '/Hardware/,6p' thegeekstuff.txt

3. Hardware

4. Security (Firewall, Network, Online Security etc)

5. Storage

6. Cool gadgets and websites

Sed Pattern Format 3: ADDRESS,/PATTERN/

It prints from the Nth line of the input, to the line which matches the pattern. If the pattern doesnt match, it prints upto end of the input.

# sed -n ‘N,/PATTERN/p’ filename

For example, 4th line matches the pattern “Security”, so it prints from 3rd line to 4th line.

# sed -n '3,/Security/p' thegeekstuff.txt

3. Hardware

4. Security (Firewall, Network, Online Security etc)

Sed Pattern Format 4: /PATTERN/,$

It prints from the line matches the given pattern to end of file.

# sed -n ‘/PATTERN/,$p’ filename

# sed -n '/Website/,$p' thegeekstuff.txt

8. Website Design

9. Software Development

10.Windows- Sysadmin, reboot etc.

Sed Pattern Format 5: /PATTERN/,+N

It prints the lines which matches the pattern and next N lines following the matched line.

# sed -n ‘/PATTERN/,+Np’ filename

For example, following prints the 5th line which matches the pattern /Storage/ and next two lines following /Storage/.

# sed -n '/Storage/,+2p' thegeekstuff.txt

5. Storage

6. Cool gadgets and websites

7. Productivity (Too many technologies to explore)

Sed Pattern Format 6: /PATTERN/,/PATTERN/

Prints the section of file between two regular expression (including the matched line ).

# sed -n ‘/P1/,/P2/p’ filename

For example, 5th line matches “Storage” and 8th line matches “Design”, so it prints 5th to 8th.

# sed -n '/Storage/,/Design/p' thegeekstuff.txt

5. Storage

6. Cool gadgets and websites

7. Productivity (Too many technologies to explore)

8. Website Design

Delete File Lines Using Address and pattern in Sed

“p” command prints the buffer (Remember to use “-n” option with “p”)

“d” command is just opposite, it’s for deletion. “d” will delete the pattern space buffer and immediately starts the next cycle.

Syntax:

# sed ‘ADDRESS’d filename

# sed /PATTERN/d filename

Delete the Nth line.

“Nd” delete the Nth line and prints the other lines.

For example, 3d deletes 3^rd line and prints other lines.

$sed 3d sample.txt

Delete Starting from 3^rd line and every 2^nd line from there.

$sed ‘3~2d’ sample.txt

Delete from 4ht to 8^th line from file

$sed ‘4,8d’ sample.txt

Delete the last line from input

$sed ‘$d’ sample.txt

Delete the line which matches the given pattern from input

$sed /Sysadmin/d sample.txt

Delete the line from which matches the given pattern to end of the file

$sed ‘/Website/ ,$d’ sample.txt

Delete the line from which matches the given pattern and 2 lines next to that

$sed ‘Storage/ ,+2d’ sample.txt

Delete blank line from a file using sed.

$sed ‘/^$/d’ sample.txt

The post Unix Sed Quick Reference appeared first on scmGalaxy.

Sample Ant clean, prepare, and compile tasks

<target name=”clean”>
<echo>=== CLEAN ===</echo>
<delete failonerror=”false”>
<fileset dir=”${dest.dir}” includes=”**/*”/>
</delete>
<delete dir=”${temp.dir}” />
</target>

<target name=”prepare” depends=”clean”>
<echo>=== PREPARE ===</echo>
<mkdir dir=”${dest.dir}” />
<mkdir dir=”${temp.dir}” />
<mkdir dir=”${temp.dir.lib}” />
<mkdir dir=”${temp.dir.meta-inf}” />
<mkdir dir=”${temp.dir.web-inf}” />
<mkdir dir=”${temp.dir.classes}” />
</target>

<target name=”compile” depends=”prepare”>
<echo>=== COMPILE ===</echo>
<echo>Compiling ${src.dir} files …</echo>
<javac debug=”on” srcdir=”${src.dir}” destdir=”${temp.dir.classes}” includes=”**/*”>
<classpath refid=”build.class.path” />
</javac>

<!– compile files on the src-tests path –>
<echo>Compiling ${src.tests.dir} files …</echo>
<javac debug=”on” srcdir=”${src.tests.dir}” destdir=”${temp.dir.classes}” includes=”com/**”>
<classpath refid=”build.class.path” />
</javac>
</target>

The post Simple Ant Example – clean, prepare, and compile tasks appeared first on scmGalaxy.

How to configure and use SSH authentication system server CVS

cvs (Concurrent Version System) is a very popular version control tool. Although its function as Perforce, Subversion and other powerful, but because of its easy configuration, simple to use and the introduction of longer, so in all a kind of software project widely used.

first is to install FreeBSD, and application security patches. This step is very simple, download a FreeBSD (the upcoming 5.2-RELEASE is a good choice, in this article was published, this version may have been able to download a) of the mini iso burning CD-ROM, then you can install the (choose “Minimum” installation). Note that, in order to be able to use ssh authentication, be sure to install the crypto. Configure the network for this machine, so after the restart just fine.

then install the necessary package. FreeBSD 4.x built-in perl, but in 5.x in, perl be deleted from the basic system. In order to better use, including ACL, commit mail, and a number feature, you must install perl.

I personally recommend using the ports in the 5.8.x version of perl. Before installing, first of all convinced that the system does not perl 5.6.x installed, the new system, they can safely execute the following command:

This will remove the existing any package. In general, the majority of FreeBSD users use cvsup to update the system, but the release of the CD, cvsup-without-gui is not included, while the ordinary cvsup package requires a series of X11 libraries. To avoid trouble, consider the following two different ways to complete the first code update:

1, using the FreeBSD’s cvs to synchronize code:

cvs-d: pserver: anoncvs@anoncvs.jp.FreeBSD.org: / home / ncvs login

enter “anoncvs”, Enter

cd / usr

cvs-R-d: pserver: anoncvs@anoncvs.jp.FreeBSD.org: / home / ncvs export-r RELENG_5_2 src ports

Note: If you are not using 5.2-RELEASE, please make appropriate amendments to RELENG_5_2 (for example ,4-STABLE is RELENG_4, – CURRENT is the HEAD, etc.)

2, install cvsup-without-gui:

pkg_add-r cvsup-without-gui

then use cvsup to synchronize code, space is limited, I will not repeat them

I recommend the first method, of course, the second method should be faster, and does not require manually compiling cvsup. Subsequently, the installation of Perl 5.8.x:

cd / usr / ports / lang / perl5.8 & & make all install clean & & rehash

Then we will face a very serious problem: ports inside use.perl script does not know the system had not installed perl, so the time to be wrong in the implementation – this time, just make a symbolic link to perl on it. Well, the implementation:

use.perl port

This script will help you complete use.perl modify configuration files (such as / etc / make.conf) and a series of work. Here is not the table, a little profile about OpenSSH (sshd) configuration, in general, add the following two lines:

Protocol 2

PasswordAuthentication no

the benefits of doing so: ( 1) only allow ssh2 protocol log, which can provide better security (2) does not allow password login, which no doubt will increase security.

1, create a cvs repository

Well, pre-configuration is basically over. Do not forget to create a user for the cvs group, for example, ncvs, as well as a cvs repository for the management of users, such as the repoman (which of course is ncvs that group), and then create a directory to save the cvs repository, in this case , we put it into / home / ncvs in:

rm-rf / home / ncvs

mkdir-p / home / ncvs

chown-R repoman: ncvs / home / ncvs

chmod-R 775 / home / ncvs

next step is to initialize the repository, and simple to implement:

su-l repoman

cvs-d / home / ncvs init

on it.

present, all the FreeBSD version of cvs are included in the safety of the existence of a small vulnerability, although this flaw only in local use, but we recommend that you put it back on is to find / usr / src / contrib / cvs / src / expand_path.c in

return current_parsed_root-> original;

line, turning it into a

return current_parsed_root-> directory;

Of course, the next step is to re-make world kernel of. Need to note is that if you are using a 5-CURRENT, also need to modify some code for it to reach 5.2-RELEASE as performance (-CURRENT in a large number of debugging options turned on), specific methods will not go into here.

2, the configuration commitmail and ACL

then configure cvs commitmail and ACL. I personally think that commitmail the team software development a very important thing to cvs, it is especially important because cvs is not atomic submit function, but commitmail just enough to make up for this.

FreeBSD development team used a very good perl script to complete commitmail function, while the hook they use cvs to achieve a simple access control function (ACL). I use the cvs repository based on FreeBSD’s CVSROOT, and made a few changes.

use the CVSROOT cover your CVSROOT, and you also need to freebsd directory mailsend.c which compiled the results into the / usr / local / bin (the script assumes that the CVSROOT in this matter). In addition, the CVSROOT need some modifications before it is put into use (for example, machine name, etc.). These settings can be found in the cfg_local.pm inside:

$ MAILADDRS = ‘cvs- all@example.org ‘;

commitmail this is the place to be sent to.

$ MAIL_BRANCH_HDR = “X-Phantasm-CVS-Branch”;

this is to be added to the commitmail head of information, if you use the mailing list, then it can help mailing list automatically sorted.

$ MAILBANNER = “The Phantasm Studio repository”;

this soon in commitmail said that they commit to which a repository.

if ($ hostname = ~ / ^ cvs \. Example \. Org $ / i)

commit to this is to determine the host name

$ CVSWEB_URL = “http://cvsweb.example.org/cgi-bin/cvsweb.cgi”;

This is cvsweb services at

a brief CVSROOT in the other documents

avail: the file used to control access to user group.

access: This file is used to control who can perform cvs operations.

exclude: This file is used to control those files do not need to check the cvs tag

options: this file used to control the commencement of cvs tag, for example, can define $ Phantasm $, etc.

3, configuration of users and restrict ssh permissions

ssh authentication using a more vexing question is, ssh means that users have a system account, and that they be able to log in.. If configured properly, they can get a shell, it is natural to be a potential security risk.

must therefore be very careful in handling the ssh cvs authentication issue. The underlying principle is: any action against the user, unless we allow them to do so.

create a user in accordance with the following rules:

user’s” primary “group is ncvs (This will not only restrict the user’s permission, so we can more easily control the other users in the cvs repository which can not be free to commit)

users do not use password authentication, which will ease because they do not properly set up ftp and other safety hazards caused by

still give the user a shell, the “shell” can be a perl script, it only allow the implementation of the beginning of the command cvs

then allow users to use openssh’s ssh-keygen to generate your own key pair. OpenSSH in most * BSD and Linux distributions can be found in, if the user uses the Windows Desktop, you need to install cygwin (in particular, the installation of net in OpenSSH), of course, the implementation of the command is the same:

ssh-keygen-t dsa-b 2048

for the paranoid security enthusiasts, can consider later in 2048 will be replaced by-b 4096. Of course, under the barrel theory, if you are a paranoid, then obviously you should be forced to use all the partners are also at least as long as your key:)

, the administrator should be user (committer) the key into the server, the user corresponding to the authorized_keys file in the folder inside. For example, one of my public key as follows:

ssh-dss AAAAB3NzaC1kc3MAAAEBAL +1 jinOw +86 RcTEaSM5/Hz4Lr9tIS0IQsX8ebo

TwLzWnqpOHRh2KBCGn/e0xGCIAai7PGz7c + SZCvrLiRvG9mCsMMMue8ZIL + QF4OAmMd

Cz8Qoyg0cc4YXImOd + UEpdOX29PC4aMAz28v/GO2yf58/Qa49Clfq1kHa/8q3IAgs9o

W95 / ArG + IWFOsN1Tv9nh4XJb5AQjpa5uMlB5SEmvKGTXQ2oYiRVIxL8vzHL6MtO/8×1

j8 + RioSH6FCpEXS7UJbYxE7vF3m5Fa5o6g2dIZewphsleOeHkvYJ442Hqvsly3p4 +4 N

dvim4bY2HMDha5r5zeTV8tTlOz4wQVgKyWoEAAAAVAINGzX7uU0vR8l63qhBhUeWGZt

C9AAABADWiO +9 bvV7DApsn08LR1eoEnMjJFQgEfGlbV + EvZHkO0bkHZAdRIKtVmgNUw

G6uufykkt2Tb + q5SbVNZkzeaFVv4ZMtnjSvEPIZrEXcQFFguGk1it5v5EYcmq4G8 + j1

BFTVHef4b1wMTSt11WtEz0LUYncuZ6LA48/WGTuZiSm8JkchgVm8HhR9NqjdeFJH8sO

RUhUBoxyWjo/hv7zFg7HqoJGzeNfrEhFg36psR2RDaRvSP0vN1W2q4j5OZy3gB6ZyVt

nsEPl1HELhlaCFifmdz1LVxDx + FyPy6wMsPQLTmB1g6N1J6PWy3qCTJ0NyQgarSt3 / A

TQ0InF1BOdJn8QAAAEAPb1OgswuMHdEsHk2ETZVmOKOkI9Rjf72vjZ3xG45iEbCH/7p

aTP8OQmJMW9FD4MHjdmtktPVYXDIa9Hj/IM44zhfMHEdKs9LlFUK5dBgNUps + yPj2Ns

Mr2rl771ODR0mB52FwrXm1FCmNTM7WQpFOEy/QhtZRpHK +7 / YZp7PBggt17Fw7rbjP2

zhWnZluoSKLgvfkhxhJuOMm/ElNJx2c + XHdxPqI3eR5UxzLNjDUNh59I8 + h + E69bFB3

b2uhKqziziHOQcqoH5r0Kud / DBBE79lU3mRUF8FQNygCRh/V3yFzed40rc0nF0PQpNZ

6zodDTJByrm6vX5wr2lI4RgA9w == bitripper@grimreaper.delphij.net

Description: public key is not allowed off-line, here is convenient for typesetting. We have just opened to the user shell, which is still potential pitfalls, so we tighten security in this regard, the public key by adding the following text before the project:

command = “/ usr / bin / cvs – allow-root = / home / ncvs server”

So, the whole line should look like this:

command =” / usr / bin / cvs – allow-root = / home / ncvs server “ssh-dss AAAAB

…… …………………..

X5wr2lI4RgA9w == bitripper@grimreaper.delphij.net

ssh this command means that up on the implementation of / usr / bin / cvs – allow-root = / home / ncvs server this command, and can only perform this command. Thus, unless there are loopholes in the cvs itself, otherwise, can not really cut out through ssh shell. – Allow-root limits the ability to use the repository, so users can not easily specify the other repository, thus trying to undermine the security will become more difficult. If you need multiple repository, you can specify the number of allow-root parameter.

be noted is that if users have multiple public key, you need to specify each public key before the command.

4, configuration cvsweb

configuration cvsweb is quite simple. First install the apache (I tried 1.3.x and 2.0.x), configure the ready, from the port which install cvsweb on it:

cd / usr / ports / devel / cvsweb & & make all installl clean

and then to modify it configuration file:

cd / usr / local / etc / cvsweb

vi cvsweb.conf

find

;

@ CVSrepositories = (

line, follow the example of an increase in following their own repository, For example:

‘ncvs’ => [‘ New CVS Repository ‘,’ / home / ncvs’],

write the number of how many, of course, @ CVSrepositories the first to directly access cvsweb.cgi when the repository.

in FreeBSD 5.1-CURRENT development process carried out by some of the changes caused by the ports in the cvsweb not normally call the cvs and rcs tools, which will cause it to not work properly. To solve this problem, can be found from the following web site the latest version of cvsweb:

http://www.freebsd.org/projects/cvsweb.html

the author of this writing, the latest cvsweb version is 2.9.1 beta. Before the installation, need to install the other two port:

cd / usr/ports/devel/p5-IPC-Run & & make all install clean

cd / usr/ports/net/p5-URI & & make all install clean

then downloaded tbz file unpack, copy to the appropriate location (cgi-bin and related images directory) can be used.

The post How to configure and use SSH authentication system server CVS appeared first on scmGalaxy.

Usage of ANT_OPTS in Ant Script | ANT_OPTS capabilities

Ant has three environment variables that you can use to set its default behavior.
• ANT_ARGS Set this variable to include those options you use frequently.
• ANT_OPTS is a list of arguments that you want to pass to the JVM that will run Ant.
• JAVACMD is the absolute path to the Java executable you want Ant to use. you may specify a value for the JAVACMD environment variable. This defaults to %JAVA_HOME%\bin\java, typically invoking the JVM provided in Sun’s Java Development Kit. Ant provides JAVACMD for those who wish to specify an alternate JVM. full path of the Java executable. Use this to invoke a different JVM than JAVA_HOME/bin/java(.exe).

These are useful environment variables that the Ant wrapper scripts use when
invoking Ant: ANT_OPTS and ANT_ARGS. Neither of these is typically set by users,
but each can provide value for certain situations.

The ANT_OPTS environment variable provides options to the JVM executing Ant,
such as system properties and memory configuration. ANT_OPTS – command-line arguments that should be passed to the JVM. For example, you can define system properties or set the maximum Java heap size here.

For authenticated proxy:
Set your ANT_OPTS environment variable to configure your proxy if you have one. For instance:
set ANT_OPTS=-Dhttp.proxyHost=myproxy -Dhttp.proxyPort=3128

You can set these properties by either modifying Ant’s startup script, or by
using the ANT_OPTS environment variable. The following example shows the Windows commands to specify these properties using ANT_OPTS, and then to invoke Ant:
set ANT_OPTS=-DproxySet=true -DproxyHost=localhost -DproxyPort=80
ant mytarget
The same trick works on Unix, although the syntax is slightly different depending on which
shell you use:
$ export ANT_OPTS=”-DproxySet=true -DproxyHost=localhost -DproxyPort=80″
$ ant mytarget

set ANT_OPTS=-Dhttp.proxyHost=myproxyhost -Dhttp.proxyPort=8080 -Dhttp.proxyUserName=myproxyusername -Dhttp.proxyPassword=myproxypassword -Dhttps.proxyHost=myproxyhost -Dhttps.proxyPort=8080

Use ANT_OPTS to control Ant’s virtual machine settings.
Some tasks may require more memory, which you can set in the ANT_OPTS environment variable, using the appropriate mechanism for your platform:
set ANT_OPTS=-Xmx500M
export ANT_OPTS=-Xmx500M

Setting the maximum heap size is another common use of ANT_OPTS. Here is how we set the maximum size to 128 MB when using Sun’s JDK:
set ANT_OPTS=-Xmx128m

One environment variable you may wish to set is ANT_OPTS. The value of this variable is passed as a JVM argument. Specifying system properties is a common use. In this simple
example, we pass the log.dir system property to the JVM running Ant:
$ set ANT_OPTS=-Dlog.dir=C:\logs
$ ant run
Now this property is available within the buildfile, for instance:
<echo>Log directory is set to: ${log.dir}</echo>
If the buildfile runs a Java application, the property may be retrieved from within it as
follows:
String logDir = System.getProperty(“log.dir”);

Troubleshoot: Illegal Java options in the ANT_OPTS variable
The environment variable ANT_OPTS provides a means to pass options into Ant,
such as a permanent definition of some properties, or the memory parameters for
Java. The variable must contain only options the local JVM recognizes. Any invalid
parameter will generate an error message such as the following (where ANT_OPTS was
set to –3):
Unrecognized option: -3
Could not create the Java virtual machine.

If the variable contains a string that is mistaken for the name of the Java class to run
as the main class, then a different error appears:

Exception in thread “main” java.lang.NoClassDefFoundError: error-string
Test: Examine ANT_OPTS and verify that the variable is unset or contains valid
JVM options.
Fix: Correct or clear the variable.

The post Usage of ANT_OPTS in Ant Script | ANT_OPTS capabilities appeared first on scmGalaxy.

Running Java EE applications on Amazon EC2: deploying to 20 machines with no money down

Computer hardware has traditionally been a scarce, expensive resource. In the early days of computing developers had to share a single machine. Today each developer usually has their own machine but it’s rare for a developer to have more than one. This means that running performance tests often involves scavenging for machines.  Likewise, replicating even just part of a production environment is a major undertaking. With Amazon’s Elastic Compute Cloud (EC2), however, things are very different. A set of Linux servers is now just a web service call away. Depending on the type of the servers you simply pay 10-80 cents per server per hour for up to 20 servers! No more upfront costs or waiting for machines to be purchased and configured.

To make it easier for enterprise Java developers to use EC2, I have created EC2Deploy.  It’s a Groovy framework for deploying an enterprise Java application on a set of Amazon EC2 servers. EC2Deploy provides a simple, easy to use API for launching a set of EC2 instances; configuring MySQL, Apache and one or more Tomcat servers; and deploying one or more web applications. In addition, it can also run JMeter and collect performance metrics.

Here is an example script that launches some EC2 instances; configures MySQL with one slave, Tomcat and Apache; deploys a single web application on the Tomcat server; and runs a JMeter test with first one thread and then two.

class ClusterTest extends GroovyTestCase {

  void testSomething() {

    AWSProperties awsProperties = new

        AWSProperties("/…/aws.properties")

    def ec2 = new EC2(awsProperties)

    def explodedWar = '…/projecttrack/webapp/target/ptrack'

    ClusterSpec clusterSpec =

       new ClusterSpec()

            .schema("ptrack", ["ptrack": "ptrack"],

                    ["src/test/resources/testdml1.sql",

                     "src/test/resources/testdml2.sql"])

            .slaves(1)

            .tomcats(1)

            .webApp(explodedWar, "ptrack")

            .catalinaOptsBuilder({builder, databasePrivateDnsName ->

                 builder.arg("-Xmx500m")

                 builder.prop("com.sun.management.jmxremote")

                 builder.prop("com.sun.management.jmxremote.port", 8091)

                 builder.prop("com.sun.management.jmxremote.authenticate",

                                     false)

                 builder.prop("com.sun.management.jmxremote.ssl", false)

                 builder.prop("ptrack.application.environment", "ec2")

                 builder.prop("log4j.configuration",

                               "log4j-minimal.properties")

                 builder.prop("jdbc.db.server", databasePrivateDnsName)})

    SimpleCluster cluster = new SimpleCluster(ec2, clusterSpec)

    cluster.loadTest("…/projecttrack/functionalTests/jmeter/SimpleTest.jmx",

        [1, 2])

    cluster.stop()

  }

}

Let’s look at each of the pieces.

First, we need to configure the framework as follows:

    AWSProperties awsProperties = new

        AWSProperties("/…/aws.properties")

    def ec2 = new EC2(awsProperties)

The aws.properties file contains various properties including the Amazon WS security credentials and the EC2 AMI (i.e. OS image) to launch. All servers use my EC2 appliance AMI that has Java, MySQL, Apache, Tomcat, Jmeter and some other useful tools pre-installed.

Next we need to configure the servers:

     ClusterSpec clusterSpec =

        new ClusterSpec()

             .schema("ptrack", ["ptrack": "ptrack"],

                    ["src/test/resources/testdml1.sql",

                     "src/test/resources/testdml2.sql"])

             .slaves(1)

             .tomcats(1)

             .webApp(explodedWar, "ptrack")

             .catalinaOptsBuilder({builder, databasePrivateDnsName ->

                 builder.arg("-Xmx500m")

                 builder.prop("com.sun.management.jmxremote")

                 builder.prop("com.sun.management.jmxremote.port", 8091)

                 builder.prop("com.sun.management.jmxremote.authenticate",

                                     false)

                 builder.prop("com.sun.management.jmxremote.ssl", false)

                 builder.prop("ptrack.application.environment", "ec2")

                 builder.prop("log4j.configuration",

                               "log4j-minimal.properties")

                 builder.prop("jdbc.db.server", databasePrivateDnsName)})

     SimpleCluster cluster = new SimpleCluster(ec2, clusterSpec)

This code first creates a ClusterSpec, which defines the configuration of the machines and the applications:

• schema() – specifies the name of the database schema to create; names of the users and their passwords; the DML scripts to execute once the database has been create
• slaves() – specifies how many MySql slaves to create
• tomcats() – specifies how many Tomcats to run.
• webApp() – configures a web application. This method takes two parameters: the path to the exploded WAR directory (conveniently created by Maven) and the context to deploy the web application under.
• catalinaOptsBuilder() – supplies a closure that takes a builder and the DNS name of the MySQL server as arguments and returns the CATALINA_OPTS used to launch Tomcat. It’s primary purpose is to configure the web application(s) to use the correct database server

It then creates a cluster with that specification.

We then start the cluster:

    cluster.start()

At this point EC2Deploy will:

1. Launch the EC2 instances running my appliance AMI.
2. Initialize the MySql master database
3. Create the MySql slave
4. Create the database schema and the users
5. Run any DML scripts (these are cached on S3 in a bucket called “tmp–dml” for the reasons described next)
6. Upload the web applications to Amazon S3 (Simple Storage Service) where they are cached in order to avoid time consuming uploads (over slow DSL connections, for example). EC2Deploy only uploads new and changed files, which means that the bulky 3^rd party libraries are only uploaded once. Each web application is stored in an S3 bucket called -tmp-war. If this bucket does not exist you will see some warning messages and the bucket will be created.
7. Deploy the web applications on each of the Tomcat servers
8. Configure Apache to load balance across the Tomcat servers

Once the cluster is started we can run a JMeter load test:

    cluster.loadTest("…/projecttrack/functionalTests/jmeter/SimpleTest.jmx", [1, 2])

The first argument specifies the test to run and the second argument is a list of JMeter thread counts. In this example, EC2deploy first runs the load test with one thread and then two threads. For each test run, it generates a report describing CPU utilization for each machine, average response time and throughput.

Finally, we stop the EC2 instances:

cluster.stop()

As you can see, EC2Deploy makes it pretty easy to deploy and test your enterprise Java application. I’ve used it to clone a production environment and run load tests. NOTE 1/28/08: The source code EC2Deploy along with a very cool Maven plugin is now available !

The post How to Run/Deploy Java EE applications on Amazon EC2? appeared first on scmGalaxy.

Bamboo is available in two ‘distributions’ — Standalone or EAR-WAR. The Standalone distribution is recommended (even for organisations with an existing application server environment).
Standalone Installation Guide — Windows

Download and Install Bamboo Standalone for Windows (Windows Installer)

·  Download Bamboo Standalone for Windows. Bamboo Standalone for Windows is available for download from the Bamboo Download Center. Choose the Windows Installer (.exe) download.
·  Launch the Bamboo Windows installer (atlassian-bamboo-x.x-standalone.exe) to begin the installation wizard.
·  The installer requires you to specify two directories:
Bamboo installation directory — This is the directory where Bamboo’s application files will be installed. The default is:
C:/Program Files/Bamboo
Bamboo home directory — This is the directory where Bamboo will store its configuration data. If the directory you specify doesn’t exist, Bamboo will create the directory when it launches. The default is:
C:/Documents and Settings//Bamboo-home
Note: You must use forward-slashes in your directory path. Backslashes are not recognised by Bamboo. Please ensure that the Bamboo home directory is not located inside the Bamboo installation directory

Download and Install Bamboo Standalone for Windows (ZIP Archive)

·  Download Bamboo Standalone for Windows. Bamboo Standalone for Windows is available for download from the Bamboo Download Center. Choose the ZIP Archive (.zip) download (click the ‘Show all‘ link to show the ‘ZIP Archive‘ download link).
·  Extract the files from the ZIP Archive (atlassian-bamboo-x.x-standalone.zip) to a Bamboo installation directory of your choice. By default, the root directory in your zip file is named “Bamboo”.
·  Set up your Bamboo home directory — this is the directory where Bamboo will store its root configuration data. To do this, edit the file named bamboo-init.properties in the Bamboo/webapp/WEB-INF/classes directory. In this file, insert the property “bamboo.home”, with an absolute path to your Bamboo home directory. Your file should look something like this:

    bamboo.home=C:/test/bamboo-home

Alternatively, you can specify an environment variable ‘BAMBOO_HOME’ which specifies the absolute path to your {BAMBOO_HOME} directory. Bamboo will check if an environment variable is defined.
·  If you are going to use Bamboo remote agents, set the following in the bamboo-init.properties file in the /webapp/WEB-INF/classes directory:
bamboo.jms.broker.uri=tcp://localhost:54663

• Replace ‘localhost’ with the real host name or IP address of your Bamboo server.
• If port number 54663 is already in use, specify a different port number.

Launch Bamboo

Launch via the Start Menu
If you have used the ‘Windows Installer’ to install Bamboo, you can start Bamboo via the Start Menu in Windows (generally under the ‘Bamboo’ folder by default). The following options will be available in your Start Menu:

• ‘Bamboo Continuous Integration Server Uninstaller‘ — uninstalls Bamboo from your computer
• ‘Install Service‘ — installs Bamboo as a Windows service (note, this will not start Bamboo)
• ‘Remove Service‘ — removes the Bamboo Windows service, if you have previously installed it (note, Bamboo will not be uninstalled from your computer)
• ‘Start in Console‘ — starts Bamboo in a Windows console
• ‘Start Service‘ — starts your installed Bamboo Windows service
• ‘Stop Service‘ — stops your installed Bamboo Windows service

You can run Bamboo in two modes, either in a Windows console or as a Windows service:

• To run Bamboo in a Windows console, click the ‘Start in Console‘ option.
• To run Bamboo as a Windows service, click the ‘Install service‘ option. After the service is installed, click ‘Start Service‘. Once you have installed Bamboo as a service, Bamboo will start up automatically every time Windows restarts.

Launch via batch file
You can start Bamboo via the batch files that are shipped with Bamboo. If you have installed Bamboo via the ZIP Archive, you will need to use the batch files to start Bamboo. You can find the following batch files in your installation directory:

• ‘BambooConsole.bat‘ — this starts Bamboo in a Windows console.
• ‘InstallAsService.bat‘ — this installs Bamboo as a Windows service. Note that this will not start Bamboo.
• ‘StartBamboo.bat‘ — this starts your installed Bamboo Windows service.
• ‘StopBamboo.bat‘ — this stops your installed Bamboo Windows service
• ‘UninstallService.bat‘ — this un-installs the Bamboo Windows service from your machine. Note that your Bamboo installation still remains.

You can run Bamboo in two modes, either in a Windows console or as a Windows service:

• To run Bamboo in a Windows console, run ‘BambooConsole.bat‘
• To run Bamboo as a Windows service, run ‘InstallAsService.bat‘. After the service is installed, run ‘StartBamboo.bat‘. Once you have installed Bamboo as a service, Bamboo will start up automatically every time Windows restarts.

Configure Bamboo

1. Access your running Bamboo instance by going to your web browser and entering the address: http://localhost:8085/.
2. Configure Bamboo via the Setup Wizard which will display. Read Running the Setup Wizard for further instructions.

For more details on Installation and Configuration, please review following links
http://confluence.atlassian.com/pages/viewpage.action?pageId=55246864

• Bamboo Installation Guide
  • Bamboo EAR-WAR Installation Guide
  • Bamboo Remote Agent Installation Guide
  • Bamboo Standalone Installation Guide (Linux)
  • Bamboo Standalone Installation Guide (Mac)
  • Bamboo Standalone Installation Guide (Windows)
  • Connecting Bamboo to an external database
  • Running the Setup Wizard

The post Installation and Configuration Guide: Bamboo appeared first on scmGalaxy.

If you have any of the following questions in your mind, then this article is the perfect destination for you.

• How to copy VSS project from one VSS database to another one without loosing history
• How to move VSS project from one location to another location
• Moving Visual SourceSafe projects or databases to a new location?
• Moving a project or projects from one database to another, while preserving the project’s history?

The procedures within each scenario may vary depending on the version of Visual SourceSafe you are running.

APPLIES TO

Microsoft Visual SourceSafe 5.0 Standard Edition

Microsoft Visual SourceSafe 6.0 Standard Edition

NOTE: This process is for Visual SourceSafe 5.0 or greater only.

Requirement:

1.   Use the SSARC and SSRESTOR utilities included in Visual SourceSafe 5.0. With these utilities, you can archive projects, preserve their histories, and restore them to a new database.

2.   You must have SourceSafe Admin privileges to use these utilities

3.   In order to restore a project successfully your archive must include the latest versions all the files in the project. If you use the -v switch with SSARC to archive off earlier versions of your files, you will not be able to restore that archive to a different database because it needs the later versions.

4.   Because the physical file names get renamed when you restore a project to a new database, it may be necessary to reconnect projects that are integrated with Visual SourceSafe.

Warning:

1.   always be very careful when archiving and deleting files

2.   Backing up source files is like voting, do it early and often (warning, this may not be legal in your jurisdiction).

3.   Test your backups out before you actually need them, avoid permanent deletes and keep copies in multiple locations.

There are two ways to Archive and Restore Project/Files from one database to another.

To Archive:

1.   Using To archive a database using Visual SourceSafe Administrator

2.   SSARC

Archival of a database allows you to:

* Save disk space on the Visual SourceSafe server or other machine hosting the database.
* Make the Show History command work more quickly.
* Transport files and projects between Visual SourceSafe databases, keeping history information intact.
* Provide a compressed file backing up all or part of a database.

How to Archive Visual SourceSafe (VSS) Project?

Method1: Using Visual SourceSafe Administrator:

The Visual SourceSafe Administrator program allows you to archive your databases using the Archive Projects command, and to restore them from backup using the Restore Projects command.

To archive a database using Visual SourceSafe Administrator:

1. Ensure that no one is using the database and that the ANALYZE utility will not run during the archive operation.
2. Open the database for which you want to archive information.
3. On the Archive menu of Visual SourceSafe Administrator, click Archive Projects.
4. In the Archive wizard, select the project(s) to archive, and click OK.
5. If there are additional projects to be archived, indicate this in step 1 of the wizard, and click Next when finished.
6. In step 2 of the wizard, specify how you want the project(s) to be archived, and click Next when finished. For each choice, you can use Browse to search for and select an archived file to overwrite the existing file.
7. In step 3 of the wizard, specify the versions for the data to archive, using the Version box.
8. Add a comment to the Comment box to document the archive operation.
9. Click Finish to complete the wizard. The archive is written to a *.ssa file in the directory that you have specified.

Method2: Using SSARC: –

Another way of making an archive is to use the Visual SourceSafe SSARC utility from the command line.
Examples

SSARC -d- -yadmin,password archive.ssa $/
Backup the entire default Sourcesafe database to archive.ssa, leaving the database exactly as it is.

SSARC -d- “-vlProduction Release” -yadmin,password -olog.txt archive.ssa $/Test

Backup everything since the version labelled ‘Production Release’ and create a log file with the results of the archiving process.

SSARC -d -x -yadmin,password archive.ssa “$/Project Global Domination” $/OtherProject

Description:  Archive, and delete the deleted files from two projects.

SSARC -i -yadmin,password -olog.txt “-cArchive Everything” archive.ssa $/

Description:  Archive the entire Sourcesafe database, while creating a log file, adding a comment, and running non-interactively, suitable for a scheduled task.
To Restore Project/Files from one database to another.

To Restore:

1.   Using To archive a database using Visual SourceSafe Administrator

2.   SSRESTOR

How to Restore Visual SourceSafe(VSS)Project?

Method 1: Using Visual SourceSafe Administrator

Visual SourceSafe Administrator supports restoration of a database from an archive using its Restore Projects command.

To restore a database using Visual SourceSafe Administrator

1. Make sure that no one is using the database and that the ANALYZE utility will not run during the restore operation.
2. On the Archive menu of Visual SourceSafe Administrator, click Restore Projects.
3. In the Restore wizard, enter or locate the archive file from which to restore, and then click Next.
4. In step 2 of the wizard, you can choose the items to restore to the database, and click Next to proceed.
5. Use step 3 of the wizard to specify options for restoring the selected items to the database.
6. Add a comment to the Comment box to document the restore operation.
7. Click Finish to complete the wizard.
8. Verify the database directories carefully to make sure that the restore operation has put the restored items where you intended.

Method 2: Using SSRESTOR Utility

Restores information from a previously created archive. If the restore operation attempts to create a duplicate file or project name, the operation fails. Visual SourcSafe also implements restore operations through its Restore wizard, available in Visual SourceSafe Administrator.
Examples

SSRESTOR -la -yadmin,password archive.ssa $/

Display a list of all of the files archived in archive.ssa.

SSRESTOR “-p$/Test 2” -sD:\newfolder\ -yadmin,password backup.ssa $/Test

Restores project $/Test to the database to a new location, $/Test 2, from the archive file backup.ssa, in a different Sourcesafe database.

The post How to copy VSS project from one VSS database to another one without loosing history appeared first on scmGalaxy.