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author Patrick J Volkerding <volkerdi@slackware.com>2010-05-19 08:58:23 +0000
committer Eric Hameleers <alien@slackware.com>2018-05-31 22:43:05 +0200
commitb76270bf9e6dd375e495fec92140a79a79415d27 (patch)
tree3dbed78b2279bf9f14207a16dc634b90995cbd40 /slackbook/html/archive-files-bzip2.html
parent5a12e7c134274dba706667107d10d231517d3e05 (diff)
downloadcurrent-b76270bf9e6dd375e495fec92140a79a79415d27.tar.gz
current-b76270bf9e6dd375e495fec92140a79a79415d27.tar.xz
Slackware 13.1slackware-13.1
Wed May 19 08:58:23 UTC 2010 Slackware 13.1 x86_64 stable is released! Lots of thanks are due -- see the RELEASE_NOTES and the rest of the ChangeLog for credits. The ISOs are on their way to replication, a 6 CD-ROM 32-bit set and a dual-sided 32-bit/64-bit x86/x86_64 DVD. We are taking pre-orders now at store.slackware.com, and offering a discount if you sign up for a subscription. Consider picking up a copy to help support the project. Thanks again to the Slackware community for testing, contributing, and generally holding us to a high level of quality. :-) Enjoy!
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-<!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>bzip2</title>
-<meta name="GENERATOR" content="Modular DocBook HTML Stylesheet Version 1.7" />
-<link rel="HOME" title="Slackware Linux Essentials" href="index.html" />
-<link rel="UP" title="Archive Files" href="archive-files.html" />
-<link rel="PREVIOUS" title="Archive Files" href="archive-files.html" />
-<link rel="NEXT" title="tar" href="archive-files-tar.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="SECT1" 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="archive-files.html"
-accesskey="P">Prev</a></td>
-<td width="80%" align="center" valign="bottom">Chapter 15 Archive Files</td>
-<td width="10%" align="right" valign="bottom"><a href="archive-files-tar.html"
-accesskey="N">Next</a></td>
-</tr>
-</table>
-
-<hr align="LEFT" width="100%" />
-</div>
-
-<div class="SECT1">
-<h1 class="SECT1"><a id="ARCHIVE-FILES-BZIP2" name="ARCHIVE-FILES-BZIP2">15.2 <tt
-class="COMMAND">bzip2</tt></a></h1>
-
-<p><tt class="COMMAND">bzip2</tt>(1) is an alternative compression program installed on
-Slackware Linux. It uses a different compression algorithm from <tt
-class="COMMAND">gzip</tt>, which results in some advantages and some disadvantages. The
-main advantage for <tt class="COMMAND">bzip2</tt> is the compressed file size. <tt
-class="COMMAND">bzip2</tt> will almost always compress better than <tt
-class="COMMAND">gzip</tt>. In some instances, this can result in dramatically smaller
-files. This can be a great advantage for people on slower modem connections. Also
-remember, when downloading software from a public ftp server, it's generally good
-netiquette to download the <tt class="FILENAME">.bz2</tt> files instead of the <tt
-class="FILENAME">.gz</tt> files, as this results in less overhead for the generous people
-hosting the server.</p>
-
-<p>The disadvantage to <tt class="COMMAND">bzip2</tt> is that it is more CPU intensive
-than <tt class="COMMAND">gzip</tt>. This means that bzipping a file will generally take
-longer and will use more of the CPU than gzipping the file would. When considering which
-compression program to use, you must weigh this speed vs. compressed size and determine
-which is more important.</p>
-
-<p>The usage of <tt class="COMMAND">bzip2</tt> is nearly identical to <tt
-class="COMMAND">gzip</tt>, so not much time will be spent discussing it. Like <tt
-class="COMMAND">gunzip</tt>, <tt class="COMMAND">bunzip2</tt> is identical to <tt
-class="COMMAND">bzip2 -d</tt>. The primary difference in practical usage is that <tt
-class="COMMAND">bzip2</tt> uses the <tt class="FILENAME">.bz2</tt> extension.</p>
-
-<table border="0" bgcolor="#E0E0E0" width="100%">
-<tr>
-<td>
-<pre class="SCREEN">
-<samp class="PROMPT">%</samp> <kbd class="USERINPUT">bzip2 <var
-class="REPLACEABLE">filename</var></kbd>
-<samp class="PROMPT">%</samp> <kbd class="USERINPUT">bunzip2 <var
-class="REPLACEABLE">filename.bz2</var></kbd>
-<samp class="PROMPT">%</samp> <kbd class="USERINPUT">bzip2 -9 <var
-class="REPLACEABLE">filename</var></kbd>
-</pre>
-</td>
-</tr>
-</table>
-</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="archive-files.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-tar.html"
-accesskey="N">Next</a></td>
-</tr>
-
-<tr>
-<td width="33%" align="left" valign="top">Archive Files</td>
-<td width="34%" align="center" valign="top"><a href="archive-files.html"
-accesskey="U">Up</a></td>
-<td width="33%" align="right" valign="top"><tt class="COMMAND">tar</tt></td>
-</tr>
-</table>
-</div>
-</body>
-</html>
-