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- Path: sparky!uunet!mcsun!news.funet.fi!uta!av
- From: av@uta.fi (Arto V. Viitanen)
- Newsgroups: comp.sys.ibm.pc.misc
- Subject: Re: Need help with ".Z" files...
- Keywords: compress, pack, tar
- Message-ID: <7896@kielo.uta.fi>
- Date: 17 Dec 92 13:34:44 GMT
- References: <1992Dec11.031426.1@camins.camosun.bc.ca> <torresce.724340604@craft.camp.clarkson.edu>
- Organization: University of Tampere, Finland
- Lines: 49
-
- In article <torresce.724340604@craft.camp.clarkson.edu> torresce@craft.camp.clarkson.edu (Alex "Mystic" Soto) writes:
- >comptec91006@camins.camosun.bc.ca (Michael Botten) writes:
- >
- >>This question doesn't really have much to do with this newsgroup, but I
- >>suspect someone here will know the answer. So here goes nothing...
- >
- >>What needs to be done to files ending in '.Z' (eg. filename.ext.Z) to make
- >>them usable? I assume they are archived. I guess I just need to know the
- >>name of the archiver so I can get it from an FTP server somewhere.
- >
- >Actually, doesn't .Z mean they are tar'ed? I think compressed or packed is
- >small .z
- >If it is tared together, you will have to go into UNIX and untar it by
- >typing: tar xvf filename.ext.Z
-
-
- You have mixed three programs. Tar (I think it stands for Tape ARchiver) is
- program, which generates archive-file, i.e. a file containing several files.
- Normally its extension is .tar (if it is not stored on a tape or cartidge).
- Compress is a file, which converts a file to another, which takes less bytes.
- Its extension is .Z. Pack is another program, which packs a file to another.
- Its extension is .z (note lowercase). Compress files are expanded using
- uncompress program, and pack files using unpack program.
-
- It is normally to compress tar -file with compress, so that it would not take
- so much storage. These files will have normally extension .tar.Z. I normally
- use following command:
-
- zcat filename.tar.Z | tar xvf -
-
- where zcat expands the .Z to the standard output, which is then redirected
- thru pipe to the tar program.
-
- Some anonymous ftp sites, which are on operating systems which do not support
- filenames with two dots, use extension .tar-z for compressed tar files. Some
- anonymous ftp sites can generate compressed tar files on the run, so that
- when you say
-
- get directory
-
- you receive a file called directory.tar.Z
-
- >(alex.soto@analog.com)
-
-
- --
- Arto V. Viitanen email: av@uta.fi
- University Of Tampere, av@cs.uta.fi
- Finland
-