FAQ: How to deal with COMPRESSED FILES
cal woods
.oooooo. ooooo .oooooo. .o.
d8P' `Y8b `888' d8P' `Y8b .888.
888 888 888 888 .8"888.
888 888 888 888 .8' `888.
888 888 888 888 ooooo .88ooo8888.
`88b d88' 888 o `88. .88' .8' `888.
`Y8bood8P' o888ooooood8 `Y8bood8P' o88o o8888o
COMPRESSION
***********
Some of the On-Line Guitar Archive mirrors 'compress' their files.
Here's how to deal with files that have a .Z or .gz extension,
and the ALL files, which are kept as .tgz files.
For greater detail, see Ryan Harding's bi-weekly FAQ 'Guide to
the Tab Archives'
First of all: When getting files that have a .Z or .gz extension,
you must use binary mode. Many MAC/PC programs do this
automatically; on UNIX, simply type 'bin' before 'get'ing.
The two types of compression are:
Extension Compressant/Uncompressant
--------- -------------------------
.Z compress/uncompress
.gz gzip/gunzip
UNIX
****
If you are using manual FTP on UNIX, simply 'get' the
name of the song WITHOUT the .Z or .gz extension,
and the file will be uncompressed as it is dowloaded.
i.e get filename.crd
NOT
get filename.crd.Z
If you are on unix and forget to do this, 'uncompress'
and 'gunzip' are standard unix utilities, so when you
get back to your account just type
uncompress filename.crd.Z
or
gunzip filename.crd.gz
-----------
MAC/PC
******
If you are on a MAC or PC, you need the MAC/PC versions
of these UNIX utilities.
Some of these can be found at the Archive in the directory
./resources/dos_compression
and
./resources/mac_compression
and are NOT compressed (with .Z or .gz) at the sites.
Some, however, are in standard Mac/PC formats, and
you will need Stuffit Expander (or some other 'hqx'
utility) on a MAC, or ZIP/UNZIP on a PC.
(They must be taken down in BINARY mode.)
----------
.tgz
****
.tgz simply means .tar.gz, which means that the file is a 'tar'
(Tape ARchive) file that has been gzipped. TAR allows many files
to be put into one large file, while still keeping directory
structure information. Thus, TAR is used for moving around
large collections of files in one single file, such as the ALL files
at OLGA.
To access the file, you must first gunzip the file, then untar it.
If the file is called b.tgz, you would type (UNIX)
gunzip b.tgz
If the resulting file is b.tar, then type
tar xvf b.tar
PLEASE NOTE: There are many versions of tar, using (in general)
two different forms of syntax. Please check the syntax of the
version on your system before executing tar commands.
To access the file on a MAC or DOS/WIN machine, you need tar and
gzip/gunzip for your particular platform. Then excute both commands
in turn, as above for UNIX users. Lists of sites where tar and gz
for both platforms can be found are below.
*****************
Other Sites for DOS utilities:
tar (.tar)
----------
nisc.jvnc.net/pub/MSDOS/tar for tar
garbo.uwasa.fi:/pc/unix/tar4dos.zoo
garbo.uwasa.fi:/pc/unix/tar315us.zip (MSDOS exe)
ftp.kiae.su:/msdos/arcers/tar*.exe
oak.oakland.edu:/pub/msdos/starter/tarread.exe
oak.oakland.edu:/pub/msdos/archiver/tar315us.zip
gzip (.gz)
----------
NOTE: g(un)zip also handles .Z files. (so says: 74437...@compuserve.com)
nisc.jvnc.net/pub/MSDOS/gnu/gzip-1.2.4.msdos.exe
garbo.uwasa.fi:/pc/unix/gzip124.zip
ftp.aol.com:/pub/compress
compress (.Z)
-------------
oak.oakland.edu:/pub/msdos/compress/comp430[ds].zip
garbo.uwasa.fi:/pc/unix/comp430d.zip
garbo.uwasa.fi:/pc/source/comp430s.zip
uudecode (*.uue)
----------------
world.std.com/sources/pc/archivers/uuxfer/uuxfer20.zip
************************************************************
For MAC
All utilities
-------------
ftp.aol.com:/pub/compress
Corrections/additions to this file are welcomed. Please inform:
gui...@olga.net
Last update: May 27 1997