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UGU: Unix Guru Universe - Unix Tip #4254- October 4, 2012
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Unix Tip #4254- October 4, 2012
DELETING BLANK LINES USING GREP
To delete a blank line using a grep command you can use the next
command :-
grep -v "^ *$" file-y > file-x
where file-y is the input files has blank lines and file-x will
be the output file ( excluding the blank lines ).
if we use ( grep -v "^$" ) only , the blanck line which include
spaces will not be removed.
This tip generously supported by: yousif_morckos@yahoo.com
NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted
by various unix admins around the globe. UGU suggest you read and
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production.
LAST 5 TIPS
4253
- THE BAD AND THE GOOD
4252
- SUSPEND A VI SESSION FOR SHELL
4251
- BC AND NOT BEFORE AD
4250
- LISTING FILES BY SIZE
4249
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