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Shell Programming and Scripting
check to see if a file is compressed before trying to compress
Post 302258998 by Lakris on Monday 17th of November 2008 01:12:53 AM
11-17-2008
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Hi,
I need to find out whether a file is compressed or not and based on that i need to compress that file and move it to archive folder.
say for e.g:
If file is compressed then
just move to archive folder
else
compress and move
end if
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Hi
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i have a file 4d7a94d0.bbb.1292
when i do
file 4d7a94d0.bbb.1292
the ouput is below
4d7a94d0.bbb.1292: gzip compressed data - deflate method
and i run this command
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Hi All,
Is there is any way to find the size of compressed file without doing decompression. The size should give the original uncompressed data size
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LEARN ABOUT V7
dh_compress
DH_COMPRESS(1) Debhelper DH_COMPRESS(1) NAME
dh_compress - compress files and fix symlinks in package build directories SYNOPSIS
dh_compress [debhelperoptions] [-Xitem] [-A] [file...] DESCRIPTION
dh_compress is a debhelper program that is responsible for compressing the files in package build directories, and makes sure that any symlinks that pointed to the files before they were compressed are updated to point to the new files. By default, dh_compress compresses files that Debian policy mandates should be compressed, namely all files in usr/share/info, usr/share/man, files in usr/share/doc that are larger than 4k in size, (except the copyright file, .html and other web files, image files, and files that appear to be already compressed based on their extensions), and all changelog files. Plus PCF fonts underneath usr/share/fonts/X11/ FILES
debian/package.compress These files are deprecated. If this file exists, the default files are not compressed. Instead, the file is ran as a shell script, and all filenames that the shell script outputs will be compressed. The shell script will be run from inside the package build directory. Note though that using -X is a much better idea in general; you should only use a debian/package.compress file if you really need to. OPTIONS
-Xitem, --exclude=item Exclude files that contain item anywhere in their filename from being compressed. For example, -X.tiff will exclude TIFF files from compression. You may use this option multiple times to build up a list of things to exclude. -A, --all Compress all files specified by command line parameters in ALL packages acted on. file ... Add these files to the list of files to compress. CONFORMS TO
Debian policy, version 3.0 SEE ALSO
debhelper(7) This program is a part of debhelper. AUTHOR
Joey Hess <joeyh@debian.org> 11.1.6ubuntu2 2018-05-10 DH_COMPRESS(1)