diff options
| author |   Patrick J Volkerding <volkerdi@slackware.com> | 2009-08-26 10:00:38 -0500 |
|---|---|---|
| committer |   Eric Hameleers <alien@slackware.com> | 2018-05-31 22:41:17 +0200 |
| commit | 5a12e7c134274dba706667107d10d231517d3e05 (patch) | |
| tree | 55718d5acb710fde798d9f38d0bbaf594ed4b296 /slackbook/html/archive-files.html | |
| download | current-5a12e7c134274dba706667107d10d231517d3e05.tar.gz current-5a12e7c134274dba706667107d10d231517d3e05.tar.xz | |
Slackware 13.0slackware-13.0
Wed Aug 26 10:00:38 CDT 2009
Slackware 13.0 x86_64 is released as stable! Thanks to everyone who
helped make this release possible -- see the RELEASE_NOTES for the
credits. The ISOs are off to the replicator. This time it will be a
6 CD-ROM 32-bit set and a dual-sided 32-bit/64-bit x86/x86_64 DVD.
We're taking pre-orders now at store.slackware.com. Please consider
picking up a copy to help support the project. Once again, thanks to
the entire Slackware community for all the help testing and fixing
things and offering suggestions during this development cycle.
As always, have fun and enjoy! -P.
Diffstat (limited to 'slackbook/html/archive-files.html')
| -rw-r--r-- | slackbook/html/archive-files.html | 145 |
1 files changed, 145 insertions, 0 deletions
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 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml"> +<head> +<meta name="generator" content="HTML Tidy, see www.w3.org" /> +<title>Archive Files</title> +<meta name="GENERATOR" content="Modular DocBook HTML Stylesheet Version 1.7" /> +<link rel="HOME" title="Slackware Linux Essentials" href="index.html" /> +<link rel="PREVIOUS" title="Keeping Current" href="security-current.html" /> +<link rel="NEXT" title="bzip2" href="archive-files-bzip2.html" /> +<link rel="STYLESHEET" type="text/css" href="docbook.css" /> +<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> +</head> +<body class="CHAPTER" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#840084" +alink="#0000FF"> +<div class="NAVHEADER"> +<table summary="Header navigation table" width="100%" border="0" cellpadding="0" +cellspacing="0"> +<tr> +<th colspan="3" align="center">Slackware Linux Essentials</th> +</tr> + +<tr> +<td width="10%" align="left" valign="bottom"><a href="security-current.html" +accesskey="P">Prev</a></td> +<td width="80%" align="center" valign="bottom"></td> +<td width="10%" align="right" valign="bottom"><a href="archive-files-bzip2.html" +accesskey="N">Next</a></td> +</tr> +</table> + +<hr align="LEFT" width="100%" /> +</div> + +<div class="CHAPTER"> +<h1><a id="ARCHIVE-FILES" name="ARCHIVE-FILES"></a>Chapter 15 Archive Files</h1> + +<div class="TOC"> +<dl> +<dt><b>Table of Contents</b></dt> + +<dt>15.1 <a href="archive-files.html#ARCHIVE-FILES-GZIP"><tt +class="COMMAND">gzip</tt></a></dt> + +<dt>15.2 <a href="archive-files-bzip2.html"><tt class="COMMAND">bzip2</tt></a></dt> + +<dt>15.3 <a href="archive-files-tar.html"><tt class="COMMAND">tar</tt></a></dt> + +<dt>15.4 <a href="archive-files-zip.html"><tt class="COMMAND">zip</tt></a></dt> +</dl> +</div> + +<div class="SECT1"> +<h1 class="SECT1"><a id="ARCHIVE-FILES-GZIP" name="ARCHIVE-FILES-GZIP">15.1 <tt +class="COMMAND">gzip</tt></a></h1> + +<p><tt class="COMMAND">gzip</tt>(1) is the GNU compression program. It takes a single +file and compresses it. The basic usage is as follows:</p> + +<table border="0" bgcolor="#E0E0E0" width="100%"> +<tr> +<td> +<pre class="SCREEN"> +<samp class="PROMPT">%</samp> <kbd class="USERINPUT">gzip <var +class="REPLACEABLE">filename</var></kbd> +</pre> +</td> +</tr> +</table> + +<p>The resulting file will be named <tt class="FILENAME"><var +class="REPLACEABLE">filename</var>.gz</tt> and will usually be smaller than the input +file. Note that <tt class="FILENAME">filename.gz</tt> will replace <tt +class="FILENAME">filename</tt>. This means that <tt class="FILENAME">filename</tt> 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:</p> + +<table border="0" bgcolor="#E0E0E0" width="100%"> +<tr> +<td> +<pre class="SCREEN"> +<samp class="PROMPT">%</samp> <kbd class="USERINPUT">gzip -9 <var +class="REPLACEABLE">filename</var></kbd> +</pre> +</td> +</tr> +</table> + +<p>This will take a longer time to compress the file, but the result will be as small as +<tt class="COMMAND">gzip</tt> 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.</p> + +<p>Decompressing gzipped files can be done using two commands, which are really just the +same program. <tt class="COMMAND">gzip</tt> will decompress any file with a recognized +file extension. A recognized extension can be any of the following: <tt +class="FILENAME">.gz</tt>, <tt class="FILENAME">-gz</tt>, <tt class="FILENAME">.z</tt>, +<tt class="FILENAME">-z</tt>, <tt class="FILENAME">.Z</tt>, or <tt +class="FILENAME">-Z</tt>. The first method is to call <tt class="COMMAND">gunzip</tt>(1) +on a file, like so:</p> + +<table border="0" bgcolor="#E0E0E0" width="100%"> +<tr> +<td> +<pre class="SCREEN"> +<samp class="PROMPT">%</samp> <kbd class="USERINPUT">gunzip <var +class="REPLACEABLE">filename.gz</var></kbd> +</pre> +</td> +</tr> +</table> + +<p>This will leave a decompressed version of infile in the current directory, and the <tt +class="FILENAME">.gz</tt> extension will be stripped from the filename. <tt +class="COMMAND">gunzip</tt> is really part of <tt class="COMMAND">gzip</tt> and is +identical to <tt class="COMMAND">gzip -d</tt>. As such, <tt class="COMMAND">gzip</tt> is +often pronounced <tt class="COMMAND">gunzip</tt>, as that name just sounds cooler. +:^)</p> +</div> +</div> + +<div class="NAVFOOTER"> +<hr align="LEFT" width="100%" /> +<table summary="Footer navigation table" width="100%" border="0" cellpadding="0" +cellspacing="0"> +<tr> +<td width="33%" align="left" valign="top"><a href="security-current.html" +accesskey="P">Prev</a></td> +<td width="34%" align="center" valign="top"><a href="index.html" +accesskey="H">Home</a></td> +<td width="33%" align="right" valign="top"><a href="archive-files-bzip2.html" +accesskey="N">Next</a></td> +</tr> + +<tr> +<td width="33%" align="left" valign="top">Keeping Current</td> +<td width="34%" align="center" valign="top"> </td> +<td width="33%" align="right" valign="top"><tt class="COMMAND">bzip2</tt></td> +</tr> +</table> +</div> +</body> +</html> + |