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Full Discussion: .tar and .tar.gz
Operating Systems AIX .tar and .tar.gz Post 302189812 by bakunin on Monday 28th of April 2008 02:40:06 AM
Old 04-28-2008
Quote:
Originally Posted by thye
I agreed GNU-tar is "against the cultural tradition of UNIX" but [...] By using GNU-tar it save us a lot of time,i believe.
I guess this is why the shell was invented in first place: to glue together all the little specialized tools which do only what they are intended to do, but that they do efficiently.

For the same reason one might need a tool that lists a directory and to translate its contents into chinese - that doesn't mean it would be a good idea to incorporate a translator for chinese into "ls".

If you buy tools (out in the real world, not on a computer) you'd usually buy screwdrivers, hammers, saws, etc.. These tools may serve only one purpose (a screwdriver for handling screws, a hammer for hammering, etc.), but ideally they serve this purpose well. If you try to buy a screwdriver which is a saw and a scissor and a hammer at the same time you'll end up with some sort-of "72-functions-swiss-army-knife", which does serve a lot of purposes all equally bad.

bakunin
 

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LEARN ABOUT DEBIAN

unp

unp(1)							      General Commands Manual							    unp(1)

NAME

       unp - a shell frontend for uncompressing/unpacking tools

SYNOPSIS

       unp [-u] file [ files ... ] [ -- backend args ...  ] ucat file [ files ... ]

       unp  is	a  small  script with only one goal: Extract as many archives as possible, of any kind and from any path to the current directory,
       preserving the subdirectory structure where needed. Is a Do-What-I-Want utility and helps  managing  several  extraction  programs  without
       looking for needed options for the particular tool or worrying about the installation of the needed program.

       Run unp without arguments to see the list of supported archive formats.

       The  special  version  ucat  acts  as  wrapper  for commands that can output the extracted data to standard output, like bzip (bzcat), gzip
       (zcat), tar, zip and others.

USAGE

       unp extracts one or more files given as arguments on the command line.  Additionally, it may pass some options to the backend  tools  (like
       tar options) when they are appended after `--'.

       There  is  also	a special option (-u) which is very useful for extracting Debian packages. Using -u, unp extracts the package (i.e. the ar
       archive) first, then extracts data.tar.gz in the current directory and then control.tar.gz in control/<filename>/.

NOTES

       unp will try to decompress into a FILE.unp if it get trouble with existing files. But don't count on this feature,  always  look  for  free
       working space before using unp.

       Unlike gunzip, which decompresses the file in the target directory of the source file, unp uses the current directory for output.

AUTHOR

       Development started by Andre Karwath <andre.karwath@informatik.tu-chemnitz.de>
       Now maintained and packaged for Debian by Eduard Bloch <blade@debian.org>

								    18 Feb 2001 							    unp(1)
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