scmuser created the topic: Remove blank line using Grep and sed
Hi,
How do you remove blank line using grep and sed in shell scripting?
rajeshkumar replied the topic: Re: Remove blank line using Grep and sed
grep -v "^$" filename > newfilename
The ^$ within the quotes is a regular expression: ^=beginning of line, $=end of line, with no characters between.
To store output to another file use redirection operator:
$ sed ‘/^$/d’ /tmp/data.txt > /tmp/output.txt
Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn
rajeshkumar replied the topic: Re: Remove blank line using Grep and sed
The above script will work only if you have no character in the blank line but most of the time it can happen that Tab can be possle in blank line….
so for this situation u should try following..
sed '/^[PRESS TAB]*$/d' filename
Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn
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