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Top Forums Shell Programming and Scripting Removing large number of temp files Post 302989982 by rbatte1 on Friday 20th of January 2017 07:30:00 AM
Old 01-20-2017
Lets consider this then:-
Code:
xargs rm -f < $remvfile


I tested on 100,000 files in a temporary directory like this:-
Code:
i=0;until [ $i -gt 99999 ]
do
   ((i=$i+1))
   touch $i
done

ls -1 > /tmp/remvfile
xargs rm < /tmp/remvfile


Does this help? There are far fewer rm commands called so it should run faster because they're not spawning a process for each file, however the IO overhead will still be the same. For my test, I actually ran rm five times.



Robin

Last edited by rbatte1; 01-20-2017 at 08:39 AM.. Reason: Quantified testing
 

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dpkg-name(1)							  dpkg utilities						      dpkg-name(1)

NAME
dpkg-name - rename Debian packages to full package names SYNOPSIS
dpkg-name [option...] [--] file... DESCRIPTION
This manual page documents the dpkg-name program which provides an easy way to rename Debian packages into their full package names. A full package name consists of package_version_architecture.package-type as specified in the control file of the package. The version part of the filename consists of the upstream version information optionally followed by a hyphen and the revision information. The package-type part comes from that field if present or fallbacks to deb. OPTIONS
-a, --no-architecture The destination filename will not have the architecture information. -k, --symlink Create a symlink, instead of moving. -o, --overwrite Existing files will be overwritten if they have the same name as the destination filename. -s, --subdir [dir] Files will be moved into a subdirectory. If the directory given as argument exists the files will be moved into that directory oth- erwise the name of the target directory is extracted from the section field in the control part of the package. The target directory will be `unstable/binary-architecture/section'. If the section is not found in the control, then `no-section' is assumed, and in this case, as well as for sections `non-free' and `contrib' the target directory is `section/binary-architecture'. The section field isn't required so a lot of packages will find their way to the `no-section' area. Use this option with care, it's messy. -c, --create-dir This option can used together with the -s option. If a target directory isn't found it will be created automatically. Use this option with care. -?, --help Show the usage message and exit. -v, --version Show the version and exit. EXAMPLES
dpkg-name bar-foo.deb The file `bar-foo.deb' will be renamed to bar-foo_1.0-2_i386.deb or something similar (depending on whatever information is in the control part of `bar-foo.deb'). find /root/debian/ -name '*.deb' | xargs -n 1 dpkg-name -a All files with the extension `deb' in the directory /root/debian and its subdirectory's will be renamed by dpkg-name if required into names with no architecture information. find -name '*.deb' | xargs -n 1 dpkg-name -a -o -s -c Don't do this. Your archive will be messed up completely because a lot of packages don't come with section information. Don't do this. dpkg-deb --build debian-tmp && dpkg-name -o -s .. debian-tmp.deb This can be used when building new packages. BUGS
Some packages don't follow the name structure package_version_architecture.deb. Packages renamed by dpkg-name will follow this structure. Generally this will have no impact on how packages are installed by dselect(1)/dpkg(1), but other installation tools might depend on this naming structure. SEE ALSO
deb(5), deb-control(5), dpkg(1), dpkg-deb(1), find(1), xargs(1). Debian Project 2012-04-15 dpkg-name(1)
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