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Top Forums Shell Programming and Scripting Comment all lines which are not already commented for each full path pattern matched Post 303029477 by RudiC on Sunday 27th of January 2019 01:02:19 PM
Old 01-27-2019
You escaped one address delimiter too many. man sed:


Quote:
Addresses
\cregexpc
Match lines matching the regular expression regexp. The c may be any character.
Try your sed command again, with the second | unescaped.


To avoid commenting out an already commented line, you can either add the # to all matching lines, and then remove duplicates, or extend the address, like
Code:
sed '\|^[^#].*/usr/bin/munin-cron| s|^|#|' file

Using a similar address for the reverse operation, including 0 - n spaces in the s command, is left as an execise for the reader.

Last edited by RudiC; 01-28-2019 at 08:59 AM..
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GIT-STRIPSPACE(1)						    Git Manual							 GIT-STRIPSPACE(1)

NAME
git-stripspace - Remove unnecessary whitespace SYNOPSIS
git stripspace [-s | --strip-comments] < input DESCRIPTION
Clean the input in the manner used by Git for text such as commit messages, notes, tags and branch descriptions. With no arguments, this will: o remove trailing whitespace from all lines o collapse multiple consecutive empty lines into one empty line o remove empty lines from the beginning and end of the input o add a missing to the last line if necessary. In the case where the input consists entirely of whitespace characters, no output will be produced. NOTE: This is intended for cleaning metadata, prefer the --whitespace=fix mode of git-apply(1) for correcting whitespace of patches or files in the repository. OPTIONS
-s, --strip-comments Skip and remove all lines starting with comment character (default #). -c, --comment-lines Prepend comment character and blank to each line. Lines will automatically be terminated with a newline. On empty lines, only the comment character will be prepended. EXAMPLES
Given the following noisy input with $ indicating the end of a line: |A brief introduction $ | $ |$ |A new paragraph$ |# with a commented-out line $ |explaining lots of stuff.$ |$ |# An old paragraph, also commented-out. $ | $ |The end.$ | $ Use git stripspace with no arguments to obtain: |A brief introduction$ |$ |A new paragraph$ |# with a commented-out line$ |explaining lots of stuff.$ |$ |# An old paragraph, also commented-out.$ |$ |The end.$ Use git stripspace --strip-comments to obtain: |A brief introduction$ |$ |A new paragraph$ |explaining lots of stuff.$ |$ |The end.$ GIT
Part of the git(1) suite Git 1.8.5.3 01/14/2014 GIT-STRIPSPACE(1)
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