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Top Forums Shell Programming and Scripting How to remove contents from file which are under bracket? Post 303003058 by ghpradeep on Thursday 7th of September 2017 08:38:00 AM
Old 09-07-2017
How to remove contents from file which are under bracket?

hello Friend,

In hostgroup file, i have define lots of hostgroups. I need to remove few of them without manually editing file. Need script or syntax.
I want to search particular on hostgroup_members and delete hostgoup defination of it.

for example.
Code:
define hostgroup{
        hostgroup_name          test
        alias                   test server
       hostgroup_members       test-server
}
define hostgroup{
        hostgroup_name          prd
        alias                   Prd server
       hostgroup_members       prd-server
}
define hostgroup{
        hostgroup_name          acc
        alias                   acc server
       hostgroup_members      acc-server
}

for example: suppose i delete prd-server hostgroup_members then my output will be below.
Code:
define hostgroup{
        hostgroup_name          test
        alias                   test server
       hostgroup_members       test-server
}
define hostgroup{
        hostgroup_name          acc
        alias                   acc server
       hostgroup_members      acc-server
}



Moderator's Comments:
Mod Comment
Please wrap all code, files, input & output/errors in CODE tags.
It makes it easier to read and preserves multiple spaces for indenting or fixed width data.

Last edited by rbatte1; 09-07-2017 at 10:10 AM.. Reason: Added CODE tags
 

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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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