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How To Remove All Blank Lines using Sed or VIM
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How To Remove All Blank Lines using Sed or VIM

February 27, 2015 No Comments BASH Shell, linux

The regular expressions simplify our lives. For example, if you want to remove all blank lines (empty), instead of writing any scripts or programs, you can simply use the following command line:

1

cat filename.txt | sed "/^$/d"
cat filename.txt | sed "/^$/d"

Under VI/VIM text editors, you can issue the similar commands (type in colon to start commands):

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g/^[ ]*$/d
g/^[ ]*$/d

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