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author | Patrick J Volkerding <volkerdi@slackware.com> | 2011-04-25 13:37:00 +0000 |
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committer | Eric Hameleers <alien@slackware.com> | 2018-05-31 22:45:18 +0200 |
commit | 75a4a592e5ccda30715f93563d741b83e0dcf39e (patch) | |
tree | 502f745607e77a2c4386ad38d818ddcafe81489c /slackbook/html/archive-files.html | |
parent | b76270bf9e6dd375e495fec92140a79a79415d27 (diff) | |
download | current-75a4a592e5ccda30715f93563d741b83e0dcf39e.tar.gz current-75a4a592e5ccda30715f93563d741b83e0dcf39e.tar.xz |
Slackware 13.37slackware-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!
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> + |