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Full Discussion: xargs question
Top Forums Shell Programming and Scripting xargs question Post 302680347 by Corona688 on Wednesday 1st of August 2012 06:00:22 PM
Old 08-01-2012
I don't think {} ever meant what you thought it did. In xargs' case, it just means "please don't assume quotes or spaces are special characters". {} only means 'file name' to 'find', which you left behind the instant you typed | . Put more pipes after xargs instead of trying to put them inside -- xargs isn't a shell, it can't do that.

Code:
find . -maxdepth 1 | xargs -I {} du -hs | sed 's/ [[:alnum:][unct:]]*//g'

I don't understand the intention behind your sed here, so it may not be quite right. Could you show what you're trying to do with it -- the output from du, and what you're trying to transform it into?
 

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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 [options] [--] files 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 <pack- age_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. -h, --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 --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 struc- ture. 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). AUTHOR
Copyright (C) 1995,1996 Erick Branderhorst This is free software; see the GNU General Public Licence version 2 or later for copying conditions. There is NO WARRANTY. Debian Project 2008-08-18 dpkg-name(1)
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