From 75a4a592e5ccda30715f93563d741b83e0dcf39e Mon Sep 17 00:00:00 2001 From: Patrick J Volkerding Date: Mon, 25 Apr 2011 13:37:00 +0000 Subject: Slackware 13.37 Mon Apr 25 13:37:00 UTC 2011 Slackware 13.37 x86_64 stable is released! Thanks to everyone who pitched in on this release: the Slackware team, the folks producing upstream code, and linuxquestions.org for providing a great forum for collaboration and testing. The ISOs are off to be replicated, a 6 CD-ROM 32-bit set and a dual-sided 32-bit/64-bit x86/x86_64 DVD. Please consider supporting the Slackware project by picking up a copy from store.slackware.com. We're taking pre-orders now, and offer a discount if you sign up for a subscription. As always, thanks to the Slackware community for testing, suggestions, and feedback. :-) Have fun! --- slackbook/html/archive-files.html | 145 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 145 insertions(+) create mode 100644 slackbook/html/archive-files.html (limited to 'slackbook/html/archive-files.html') diff --git a/slackbook/html/archive-files.html b/slackbook/html/archive-files.html new file mode 100644 index 000000000..c29542a95 --- /dev/null +++ b/slackbook/html/archive-files.html @@ -0,0 +1,145 @@ + + + + +Archive Files + + + + + + + + +
+ + + + + + + + + + +
Slackware Linux Essentials
PrevNext
+ +
+
+ +
+

Chapter 15 Archive Files

+ +
+
+
Table of Contents
+ +
15.1 gzip
+ +
15.2 bzip2
+ +
15.3 tar
+ +
15.4 zip
+
+
+ +
+

15.1 gzip

+ +

gzip(1) is the GNU compression program. It takes a single +file and compresses it. The basic usage is as follows:

+ + + + + +
+
+% gzip filename
+
+
+ +

The resulting file will be named filename.gz and will usually be smaller than the input +file. Note that filename.gz will replace filename. This means that filename will +no longer exist, even though a gzipped copy will. Regular text files will compress +nicely, while jpeg images, mp3s, and other such files will not compress too well as they +are already compressed. This basic usage is a balance of final file size and compression +time. The maximum compression can be achieved like so:

+ + + + + +
+
+% gzip -9 filename
+
+
+ +

This will take a longer time to compress the file, but the result will be as small as +gzip can make it. Using lower values for the command line option +will cause it to compress faster, but the file will not be as compressed.

+ +

Decompressing gzipped files can be done using two commands, which are really just the +same program. gzip will decompress any file with a recognized +file extension. A recognized extension can be any of the following: .gz, -gz, .z, +-z, .Z, or -Z. The first method is to call gunzip(1) +on a file, like so:

+ + + + + +
+
+% gunzip filename.gz
+
+
+ +

This will leave a decompressed version of infile in the current directory, and the .gz extension will be stripped from the filename. gunzip is really part of gzip and is +identical to gzip -d. As such, gzip is +often pronounced gunzip, as that name just sounds cooler. +:^)

+
+
+ +
+
+ + + + + + + + + + + + +
PrevHomeNext
Keeping Current bzip2
+
+ + + -- cgit v1.2.3