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Full Discussion: Move all .log except those generated in the last 5 minutes
Top Forums Shell Programming and Scripting Move all .log except those generated in the last 5 minutes Post 302803781 by alister on Tuesday 7th of May 2013 11:52:03 AM
Old 05-07-2013
Generally, I strongly prefer find -exec over xargs. It can process any valid filename with less overhead (-exec ... {} +) than xargs.

People often treat xargs as if it can handle any type of filename, but that is not the case. Depending on the options in effect, quotes, whitespace, and a logical EOF character can be mishandled. To be fair, in practice, these limitations are seldom relevant when dealing with local, UNIX files. However, when handling files from other filesystems, whitespace isn't uncommon. When dealing with p2p files, even quotes aren't unheard of.

Piping to xargs also adds overhead:
(1) Data needs to be copied back and forth between kernel and userspace twice as often.
(2) If find and xargs must run on the same CPU, more context switches are required.

Unless some xargs functionality is required, I would not use it.

Regards,
Alister
Last edited by alister; 05-07-2013 at 01:55 PM.. Reason: Missing word and elaboration on the possibility of encountering problematic names
 

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LEARN ABOUT MOJAVE

git-pack-redundant

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 2.17.1                                                          10/05/2018                                               GIT-PACK-REDUNDANT(1)
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