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| author | Laurent Bercot <ska-skaware@skarnet.org> | 2014-12-05 22:26:11 +0000 |
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| committer | Laurent Bercot <ska-skaware@skarnet.org> | 2014-12-05 22:26:11 +0000 |
| commit | 90b12bd71bb9fc79a4640b9112c13ef529d0196a (patch) | |
| tree | 523b3f4ee2969e7a729bab2ba749c4b924ae62af /doc/s6-tai64nlocal.html | |
| download | s6-90b12bd71bb9fc79a4640b9112c13ef529d0196a.tar.xz | |
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diff --git a/doc/s6-tai64nlocal.html b/doc/s6-tai64nlocal.html new file mode 100644 index 0000000..f6d2280 --- /dev/null +++ b/doc/s6-tai64nlocal.html @@ -0,0 +1,73 @@ +<html> + <head> + <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> + <meta http-equiv="Content-Language" content="en" /> + <title>s6: the s6-tai64nlocal program</title> + <meta name="Description" content="s6: the s6-tai64nlocal program" /> + <meta name="Keywords" content="s6 command s6-tai64nlocal filter timestamp TAI64 TAI64N human-readable date time" /> + <!-- <link rel="stylesheet" type="text/css" href="http://skarnet.org/default.css" /> --> + </head> +<body> + +<p> +<a href="index.html">s6</a><br /> +<a href="http://skarnet.org/software/">Software</a><br /> +<a href="http://skarnet.org/">skarnet.org</a> +</p> + +<h1> The s6-tai64nlocal program </h1> + +<p> +s6-tai64nlocal acts as a filter, reading from stdin and writing to stdout. +For every line that begins with a +<a href="http://skarnet.org/software/skalibs/libstddjb/tai.html#timestamp">TAI64N +timestamp</a>, it replaces this timestamp with a human-readable local date and +time. +</p> + +<h2> Interface </h2> + +<pre> + s6-tai64nlocal +</pre> + +<ul> + <li> s6-tai64nlocal exits 0 when it sees the end of stdin. If there's an +unfinished line, s6-tai64n processes it +and writes it before exiting. </li> +</ul> + +<h2> Notes </h2> + +<ul> + <li> The typical use case of s6-tai64nlocal is to read files that have +been filtered through <a href="s6-tai64n.html">s6-tai64n</a>, or log files +that have been produced by <a href="s6-log.html">s6-log</a> with the <tt>-t</tt> +option. For instance, to read the latest httpd logs with human-readable +timestamps, <tt>s6-tai64nlocal < /var/log/httpd/current | less</tt> is a +possible command. </li> + <li> s6-tai64nlocal does neither "line buffering" nor "block buffering". It does +<em>optimal buffering</em>, i.e. it flushes its output buffer every time +it risks blocking on input. </li> +</ul> + +<h2> Troubleshooting </h2> + +<p> + If s6-tai64nlocal does not appear to give the correct local time: +</p> + +<ul> + <li> Check the compilation options that were used for the +<a href="http://skarnet.org/software/skalibs/">skalibs</a> libraries +your s6-tai64nlocal program was linked against. In particular, check whether the +<tt>--enable-tai-clock</tt> or <tt>--enable-right-tz</tt> configure options +have been given. </li> + <li> Compare these flags and their meanings with your current timezone. In particular, +check <tt>/etc/localtime</tt>, <tt>/etc/timezone</tt>, <tt>/etc/TZ</tt>, and the TZ +environment variable. </li> + <li> Check that you have a correct and recent version of <tt>/etc/leapsecs.dat</tt>. </li> +</ul> + +</body> +</html> |