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Top Forums Shell Programming and Scripting Removing specific lines from script files. Post 302792297 by manishdivs on Wednesday 10th of April 2013 05:31:28 AM
Old 04-10-2013
Hello MadeInGermany,

I kept inner for loop my mistake. I was initially planning to take backup of the files then forgot to remove it from there.
This is not a homework, I stuck in between writing a command sequence upon request received from superior on an urgent basis. Any help will be really appreciated.

As you can see in my initial post that I already covered the parts of replacing find and with with their corresponding changes. I am only stuck to remove ; and/or run only from the lines occurring above line starting with word list.

I know the command to remove the single line using PATTERN, following is the code:
Code:
sed '/;/ c\
	REMOVE_PATTERN' file_name

but I stuck for removing pattern only if occurs in above line where list keyword is found.

In your response, -e 's/^[[:blank:]]*;[[:blank:]]*$//' "$i".bak > "$i" code only replaces ; irrespective of checking that it should appear in above 1 or 2 lines where the code begins with list occurs.

Actually, I want to remove ; and/or run only from the lines occurring above line starting with word list.

I apologize if I am not clear in explaining the situation. Please let me know if I need to explain more.

Please help.
Thank you.

Last edited by manishdivs; 04-10-2013 at 06:39 AM.. Reason: typo
 

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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 #. 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 1.7.10.4 11/24/2012 GIT-STRIPSPACE(1)
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