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Full Discussion: recursive effect!!
Top Forums UNIX for Dummies Questions & Answers recursive effect!! Post 34018 by criglerj on Thursday 30th of January 2003 11:05:27 AM
Old 01-30-2003
When you -exec the perl script, it's done on the first file it finds, vaditerm.dt when it finds it, not when it has read the entire directory. Then when it continues, the next file it finds is vaditerm.dt.bak, which your -exec then operates on. Next is vaditerm.dt.bak.bak ...

One solution is to pass off the results of find to xargs; xargs then runs your perl program. If you want it to do one file at a time, there's an option to xargs to tell it so.
find . -type f | xargs perl -i.bak ...

Another solution is to tell find to ignore *.bak:
find . -type f \! -name '*.bak' -exec perl ...

The xargs version (if you process more than one file at a time) uses fewer process slots and will run faster, which may be important if you have a lot of files and/or your files are long. The xargs version will overwrite existing .bak files if they are physically in the directory after the primary files. Combining the two solutions, i.e.,
find . -type f \! -name '*.bak' | xargs perl ...
will certainly overwrite existing .bak files.
 

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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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