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I am trying to delete empty lines using sed:
sed '/^$/d' but I have no luck with it.
For example, I have these lines:
xxxxxx yyyyyy zzzzzz and I want it to be like:
xxxxxx yyyyyy zzzzzz What should be the code for this?
774
To delete a line, we'll use the sed “d” command. Note that you have to declare which line to delete. Otherwise, sed will delete all the lines.
We can remove blank lines using awk: $ awk NF < myfile.
You may have spaces or tabs in your "empty" line. Use POSIX classes with sed to remove all lines containing only whitespace:
sed '/^[[:space:]]*$/d' A shorter version that uses ERE, for example with gnu sed:
sed -r '/^\s*$/d' (Note that sed does NOT support PCRE.)
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