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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter7.Tasks</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2"><link rel="start" href="index.html" title="Antelope Users Guide"><link rel="up" href="bk02.html" title="Ant Coding Style Guidelines"><link rel="prev" href="bk02ch06.html" title="Chapter6.Targets"><link rel="next" href="bk02ch08.html" title="Chapter8.Comments"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter7.Tasks</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bk02ch06.html">Prev</a></td><th width="60%" align="center">Ant Coding Style Guidelines</th><td width="20%" align="right"><a accesskey="n" href="bk02ch08.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="id2546635"></a>Chapter7.Tasks</h2></div></div></div><p>
Avoid use of the "exec" task if possible as this reduces portability.
</p><p>
This is bad as it assumes that the 'tar' utility is installed on the current path:
</p><p>
</p><pre class="programlisting">
<exec executable="tar" dir="${java.tmp.dir}/libraries">
<arg line="-xzf ${build_dir}/${libraries_tar}"/>
</exec>
</pre><p>
</p><p>
This is good:
</p><p>
</p><pre class="programlisting">
<untar src="${build_dir}/${libraries_tar}" compression="gzip"
dest="${java.tmp.dir}/libraries"/>
</pre><p>
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