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Top Forums UNIX for Dummies Questions & Answers use of xargs and prune piping with find command. Post 302281115 by rwuerth on Wednesday 28th of January 2009 08:29:26 AM
Old 01-28-2009
the -prune option prevents find from walking a subdirectory underneath it's current location. Without prune, you might print a listing as follows:

file1
file2
dir1
dir1/file1
dir1/file2
file3
file4

With prune you would print a listing like this:

file1
file2
dir1
file3
file4

When the command is piped into xargs followed by another command like the 'rm' in your example xargs acts as like a loop for the input coming from the pipe and runs the command (rm -f ) for each line of input.

The directory wont be removed by rm -f but the error will be sent to /dev/null so the user wont see this. The effect is that the files will be removed but not the directories, nor the files in the directories.
 

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GIT-PACK-REDUNDANT(1)						    Git Manual						     GIT-PACK-REDUNDANT(1)

NAME
git-pack-redundant - Find redundant pack files SYNOPSIS
git pack-redundant [ --verbose ] [ --alt-odb ] < --all | .pack filename ... > DESCRIPTION
This program computes which packs in your repository are redundant. The output is suitable for piping to xargs rm if you are in the root of the repository. git pack-redundant accepts a list of objects on standard input. Any objects given will be ignored when checking which packs are required. This makes the following command useful when wanting to remove packs which contain unreachable objects. git fsck --full --unreachable | cut -d ' ' -f3 | git pack-redundant --all | xargs rm OPTIONS
--all Processes all packs. Any filenames on the command line are ignored. --alt-odb Don't require objects present in packs from alternate object directories to be present in local packs. --verbose Outputs some statistics to stderr. Has a small performance penalty. SEE ALSO
git-pack-objects(1) git-repack(1) git-prune-packed(1) GIT
Part of the git(1) suite Git 1.8.5.3 01/14/2014 GIT-PACK-REDUNDANT(1)
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