![]() ![]() How do I remove the first blank line in Unix? The tac command is a member of the GNU Coreutils package. The output printed by a working solution looks like: This is the first non-blank line. How do you delete all blank lines including those that contain whitespace from a file using awk? Leave the Replace with section blank unless you want to replace a blank line with other text. In the Replace box, in the Find what section, type ^\r\n (five characters: caret, backslash 'r', and backslash 'n'). In the file menu, click Search and then Replace. Open Notepad and the file you want to edit. How do I remove blank lines in a text file? Do lines in the file have whitespace characters? \S means match non-blank characters. This way, empty blank lines are eliminated. So the command grep -v will print all the lines that do not match this pattern (No characters between ^ and $). How will you remove all empty lines in a file using grep?
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