doc/s6-frontend-helper-echo.html


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    <title>s6-frontend: the s6-frontend-helper-echo program</title>
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<a href="index.html">s6-frontend</a><br />
<a href="//skarnet.org/software/">Software</a><br />
<a href="//skarnet.org/">skarnet.org</a>
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<h1> The <tt>s6-frontend-helper-echo</tt> internal program </h1>

<p>
 <tt>s6-frontend-helper-echo</tt> is a small utility to echo arguments to stdout.
It is not meant to be called directly,
although nothing bad will happen if you do. It is used in command lines crafted by
<a href="s6_live.html#status">s6 live status</a> instead of the POSIX
<a href="https://pubs.opengroup.org/onlinepubs/9799919799/utilities/echo.html">echo</a>
program, because implementations of <tt>echo</tt> are infamously inconsistent with
regards to options and arguments starting with a dash, so it's better not to rely on
them at all.
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<p>
 <tt>s6-frontend-helper-echo</tt> is basically a copy of
<a href="//skarnet.org/software/s6-portable-utils/s6-echo.html">s6-echo</a> and
behaves exactly the same. The program has been included in s6-frontend in order to avoid
a dependency to <a href="//skarnet.org/software/s6-portable-utils/">s6-portable-utils</a>.
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