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Top Forums Shell Programming and Scripting How to find the latest file on Unix or Linux (recursive) Post 302500161 by alister on Sunday 27th of February 2011 05:43:59 PM
Old 02-27-2011
Quote:
Originally Posted by 1or2is3
I have finally found. The following command find the latest file, including the handling of filename with spaces.

find . -type f -printf %p";" | xargs -d ";" ls -t | head -1
So long as xargs only invokes ls once.


---------- Post updated at 05:43 PM ---------- Previous update was at 05:36 PM ----------

Quote:
Originally Posted by frans
Code:
while read F; do stat "$F" -c'%Y %n'; done < <(find "$basedir" -mtime 1)|sort|cut -d' ' -f2-|tail -1

I don't think there's any need for that while loop. You should be able to get it done using find's exec primary.
Code:
find "$basedir" -mtime 1 -exec stat -c '%Y %n' {} + | sort ....

Save yourself a few calls to stat as well.

Also, if you reverse the sort order, you can use head and finish faster (no need to pipe everything through cut and tail).

Regards,
Alister
 

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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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