Node.js could be a platform designed on Chrome’s JavaScript runtime for simply building quick and scalable network applications. Node.js uses an event-driven, non-blocking I/O model that creates it light-weight and efficient, excellent for data-intensive time period applications that run across distributed devices.
Node.js is an open-source, cross-platform runtime setting for developing server-side and networking applications. Node.js applications are written in JavaScript and maybe run among the Node.js runtime on OS X, Microsoft Windows, and Linux.

Node. js could be a platform designed on Chrome’s JavaScript runtime for simply building quick and scalable network applications. Node. js uses an event-driven, non-blocking I/O model that creates it light-weight and efficient, excellent for data-intensive time period applications that run across distributed devices.

How does Node.js work?

First of all just like other languages node comes with packages and modules. These are libraries of functions that we can import from npm (node package manager) into our code and utilize. Node. js is that the JavaScript runtime surroundings that’s supported Google’s V8 Engine for example with the assistance of Node. js we are able to run the JavaScript outside of the browser js is that it’s single-threaded, supported event-driven design, and non-blocking supported the I/O model.

Why is node js so popular?

Node. js will handle several concurrent requests. this is often the most reason it quickly became popular among developers and huge corporations. It will handle several simultaneous requests while not straining the server.

Role of a Node.js developer:

A Node. js developer is answerable for writing server-side internet application logic in JavaScript and/or variants of it, like CoffeeScript, IcedCoffeeScript, etc, js developer is answerable for writing server-side internet application logic in JavaScript and/or variants of it, like CoffeeScript, IcedCoffeeScript, etc.

Node.js Developer duties:

• Work as part of a team developing applications and services using Agile development methods.
• Contribute to team and organizational improvements in process and infrastructure.
• Build customer-facing UI and back-end services for payment processing administration and management.
• Code, test, and operate a node. js-based services.
• Effectively use tools and ingenuity to identify and fix defects before they become a problem.

Responsibilities of Node.js Developers:

Single-Threaded but Highly Scalable − Node.js uses a single-threaded model with event looping. The event mechanism helps the server to reply in a non-blocking way and makes the server extremely scalable as against ancient servers that produce restricted threads to handle requests. Node.js uses a single-threaded program and therefore the same program will offer service to a far larger range of requests than ancient servers like Apache HTTP Server.

No Buffering − Node.js applications never buffer any data. These applications simply output the data in chunks.

License − Node.js is released under the MIT license.

The Benefits of Node.js:

• Better efficiency and overall developer productivity
• Code sharing and reuse
• Speed and performance
• Easy knowledge sharing within a team
• A huge number of free tools

What is the scope of node JS?

Node.js could be a runtime environment that permits you to write down server-side applications in JavaScript. PHP could be a server-side language. attributable to that, you’ll get to try PHP with a frontend language, sometimes a mix of HTML, CSS, and JavaScript, to make full-stack internet apps.

Node.js Developer Course:

Js Developer Course covers the basics of Node before diving deep into nice tools like specific, Mongoose, and MongoDB. the whole course is predicated around one goal: Turning you into an expert Node developer capable of developing, testing, and deploying real-world production applications.

Node.js Developer requirements and qualifications:

• Previous working experience as a Node.js Developer for (x) years.
• BA in computer science or similar relevant field.
• In-depth knowledge of Node.js.
• Hands-on experience with HTML, CSS, and AJAX.
• Development experience designing object-oriented JavaScript and SVG.
• Applicable knowledge of web libraries and frameworks such as AngularJS, Polymer, and Closure.
• Familiarity with the whole web stack, including protocols and web server optimization techniques.
• Strong analytical skills and problem-solving aptitude.
• Attention to detail.

Conclusion

Node.js is, while not a doubt, one of all the additional interesting technologies in use nowadays, and it’s full-grown into one of all the foremost popular platforms used for internet applications, services, and desktop apps. It’s my hope that when looking at this course, you currently have a solid foundation to begin writing your own Node applications.

If you wanna learn, and from all of us here at DevOpsSchool, thank you for watching!

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write a batch Script for time stamp update?

sgadmin replied the topic: Re:Script for time stamp update.

data=data.txt
tfile=`cat data.txt |wc -l`

for (( i = 2 ; i <= tfile ; i++ ))
do

mfile=`cat $data |head -$i|tail -1|tr -s ” ” ” ” |cut -f8 -d” “`
mdate=`grep -i $mfile $data|tr -s ” ” ” “|cut -f6,7 -d” “`
myy=`echo $mdate |cut -b 1-4`
mon=`echo $mdate |cut -b 6-7`
mdd=`echo $mdate |cut -b 9-10`
mhh=`echo $mdate |cut -b 12-13`
mmin=`echo $mdate |cut -b 15-16`
mresult=`echo $myy$mon$mdd$mhh$mmin`
touch -t $mresult $mfile

done

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Use of %~dp0 and Use of %cd%

They are not equivalent.

%cd% is available either to a batch file or at the command prompt and expands to the drive letter and path of the current directory (which can change e.g. by using the CD command)

%~dp0 is only available within a batch file and expands to the drive letter and path in which that batch file is located (which cannot change). It is obtained from %0 which is the batch file’s name.

An experiment like the following shows the difference

Here is D:\dirshow.bat:

@echo off
echo this is %%cd%% %cd%
echo this is %%~dp0 %~dp0

Run it from C:\ and this is what you see

C:\>D:\dirshow.bat
this is %cd% C:\
this is %~dp0 D:\

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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Hello,
hi i wnt to create batch file that will automtcally send my email through outlok express at 5 pm daily with the attachement.
if anybody has any idea about this plz write to me
help would be appreciated.

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I think most of us know the DOS command “time/T” which displays current system time without prompting for new time.

But If one needs more granular output, say in HH:MM:SS format, here is a way out, use “echo %TIME%” which expands to current time using same format as TIME command.

There are so many other things which can be echoed. For example, try any of the following variables:
%CD% – expands to the current directory string.

%DATE% – expands to current date using same format as DATE command.

%RANDOM% – expands to a random decimal number between 0 and 32767.

%ERRORLEVEL% – expands to the current ERRORLEVEL value

%CMDEXTVERSION% – expands to the current Command Processor Extensions version number.

%CMDCMDLINE% – expands to the original command line that invoked the Command Processor.

%PATH% – expands the current PATH variable.

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Call perl script from vbscript

Set oShell = CreateObject("WScript.Shell")
sProgDir = "C:\Program Files\My Programs\perl\"
sArgs = "-i"
sExec = """" & sProgDir & "myperl.pl" & """"
sCmd = sExec & " " & sArgs
oShell.Run(sCmd)

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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Call batch script from vbscript

dim shell
set shell=createobject("wscript.shell")
shell.run "INSTALL.bat"
set shell=nothing

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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How to run scripts as administrator in Windows using VBS?

Set WshShell = WScript.CreateObject("WScript.Shell")
If WScript.Arguments.length = 0
Then
Set ObjShell = CreateObject("Shell.Application")
ObjShell.ShellExecute "wscript.exe", """" & _
WScript.ScriptFullName & """" &_
" RunAsAdministrator", , "runas", 1
Else

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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How to Run a Program as an Administrator in Windows

Good URL-
www.sevenforums.com/tutorials/11841-run-administrator.html

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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Any sample code in vb script to pass command line arguments separated by comma???

The post Passing command line arguments separated by comma appeared first on scmGalaxy.

Develop a function that accepts a string of names separated by comma add those names in an array and display the names added in the array.

rajeshkumar replied the topic: function in vb script

Welcome to board….

try following snippet…

Sub Funstr("str1", "str2")

a=Array(str1,str2)
document.write(a(0))
document.write(a(1))
End Sub

I would recommend you going through this url as well to learn more about it……

www.functionx.com/vbscript/Lesson06.htm

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

rajani replied the topic: function in vb script

it won’t work
i have write
“Develop a function that accepts a string of names separated by comma (example given below), add those names in an array and display the names added in the array”

Example: rajani; Disha; Dhara; Hunny ;moon
without using split function
can i use mid function

rajani replied the topic: function in vb script

i am able to display name but with comma
Dim fruits()
ReDim fruits(100)
nofruits=0
‘we do not know how many fruit names we are going to enter and so, we have declared the array size as 100
For i=0 to 100
fruits(i)=inputbox(“Enter the name of a fruit separated by comma”)
ans = MsgBox(“Do you want to continue”, vbYesNo, “Confirm Continuation…”)
If ans=vbNo Then
Exit For
End If
nofruits=nofruits+1
Next
ReDim Preserve fruits(nofruits)
‘Redim keyword resets the number of elements that can be accommodated in the array.

fruitnames=””

For each fruit in fruits
‘Using For Each Next we have displayed all the names of the fruits which was entered and kept in fruits array.
‘For Each Next extracts the fruit names stored in the array and msgbox displays the output.

fruitnames=fruitnames&fruit&vbnewline
Next

msgbox fruitnames

rajani replied the topic: function in vb script

any suggestion

rajani replied the topic: function in vb script

dim Array, Str1,X
Str1 = “Neha; Swati; Disha; Sonya; Dhara”
Array = split(Str1,”;”)
for each x in Array
message = message & x & vbCRLF
next
msgbox message

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Error:

C:\Program Files\nodejs\node_modules\npm\lib\npm.js:37
throw new Error(‘npm.load() required’)
^
Error: npm.load() required
at Object.npm.config.get (C:\Program Files\nodejs\node_modules\npm\lib\npm.js:37:11)
at exit (C:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:49:27)
at process.errorHandler (C:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:314:3)
at process.EventEmitter.emit (events.js:95:17)
at process._fatalException (node.js:272:26)
Build step ‘Execute Windows batch command’ marked build as failure

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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Test for a return code greater than or equal to 1:

if ERRORLEVEL 1 echo Error
or

if %ERRORLEVEL% GEQ 1 echo Error

or test for a return code equal to 0:

if %ERRORLEVEL% EQU 0 echo OK

You can use other commands such as GOTO where I show echo
Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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Two ways…

(1) The results are stored in a pseudo environment variable named errorlevel so…

echo Exit Code is %errorlevel%
(2) and a special syntax of the if command:

if errorlevel
see if /? for details.

For Example

@echo off
my_nify_exe.exe
if errorlevel 1 (
echo Failure Reason Given is %errorlevel%
exit /b %errorlevel%
)
Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

rajeshkumar replied the topic: get the application exit code from a Windows command line?

:: Exit if a required file is missing
@echo off
If not exist MyimportantFile.txt Exit /b
Echo If we get this far the file was found

:: Set the error level to 5
@echo off
call :setError
echo %errorlevel%
goto :eof

:setError
Exit /B 5

To make this more flexible you can change the subroutine to set any errorlevel like this:

:setError
Exit /B %1

Now you can call the subroutine: call :setError 6 replacing 6 with whatever value you need the errorlevel to be set to.

EXIT is an internal command.
Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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@echo off
echo.>”d:\testing\dblank.txt”
This creates a file containing a blank line (CR + LF = 2 bytes).

If you want the file empty (0 bytes)

@echo off
break>”d:\testing\dblank.txt”
Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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del /s /q bin – deletes all files recursively
rmdir bin – delete empty folders..

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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Debut Video Capture Batch Script Automation

Start Script

Set WshShell = CreateObject("WScript.Shell")
WshShell.Run chr(34) & "C:\Tools\start.bat" & Chr(34), 0
Set WshShell = Nothing

Stop Script

Set WshShell = CreateObject("WScript.Shell")
WshShell.Run chr(34) & "C:\Tools\stop.bat" & Chr(34), 0
Set WshShell = Nothing

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

rajeshkumar replied the topic: Debut Video Capture Batch Script Automation

et WshShell = CreateObject(“WScript.Shell”)
WshShell.Run chr(34) & “C:\Tools\start.bat” & Chr(34), 0
Set WshShell = Nothing

Set WshShell = CreateObject(“WScript.Shell”)
WshShell.Run chr(34) & “C:\Tools\stop.bat” & Chr(34), 0
Set WshShell = Nothing

Start.bat
C:\”Program Files (x86)”\”NCH Software”\Debut\debut.exe -record -hide

Stop.bat
C:\”Program Files (x86)”\”NCH Software”\Debut\debut.exe -stop -exit

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

ganjichandu@hotmail.com replied the topic: Debut Video Capture Batch Script Automation

hi this is chandu
i want some real time issues in Jenkins,svn,ant plz help this is my mail id :ganjichandu@hotmail.com
my mobile num :9912264978

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