Remove blank lines from a file
$ cat aFile This is an example file ^ with a blank line $ sed -i.bak '/^[[:space:]]*$/d' aFile $ cat aFile This is an example file ^ with a blank line $ cat aFile.bak This is an example file ^ with a blank line
What do you think?
Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?
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sed '/ *#/d; /^ *$/d' file_namesed -i '/^\s*$/d' file_nameeliminates blank lines or lines with whitespace (spaces, tabs, etc.)sed -i.bak '/^[[:space:]]*$/d' file_nameIt also makes a back up with the .bak extension.