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| author | Laurent Bercot <ska-skaware@skarnet.org> | 2014-09-18 20:03:23 +0000 |
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| committer | Laurent Bercot <ska-skaware@skarnet.org> | 2014-09-18 20:03:23 +0000 |
| commit | f316a2ed52195135a35e32d7096e876357c48c69 (patch) | |
| tree | 5f4486b9a5a213a69e66ef574d6bc643a207981c /doc/forx.html | |
| download | execline-f316a2ed52195135a35e32d7096e876357c48c69.tar.xz | |
initial commit: rc for execline-2.0.0.0
Diffstat (limited to 'doc/forx.html')
| -rw-r--r-- | doc/forx.html | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/doc/forx.html b/doc/forx.html new file mode 100644 index 0000000..86729b8 --- /dev/null +++ b/doc/forx.html @@ -0,0 +1,66 @@ +<html> + <head> + <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> + <meta http-equiv="Content-Language" content="en" /> + <title>execline: the forx command</title> + <meta name="Description" content="execline: the forx command" /> + <meta name="Keywords" content="execline command forx" /> + <!-- <link rel="stylesheet" type="text/css" href="http://skarnet.org/default.css" /> --> + </head> +<body> + +<p> +<a href="index.html">execline</a><br /> +<a href="http://skarnet.org/software/">Software</a><br /> +<a href="http://skarnet.org/">skarnet.org</a> +</p> + +<h1> The <tt>forx</tt> program </h1> + +<p> +<tt>forx</tt> runs a loop. +</p> + +<h2> Interface </h2> + +<p> + In an <a href="execlineb.html">execlineb</a> script: +</p> + +<pre> + forx [ -p | -x <em>breakcodes</em> ] <em>variable</em> { <em>args...</em> } <em>loop...</em> +</pre> + +<ul> + <li> <tt>forx</tt> reads a +<a href="el_semicolon.html">block</a> and unquotes it. +That block contains a list of <em>args</em>. </li> + <li> For each argument <em>x</em> in <em>args...</em>, +<tt>forx</tt> runs <em>loop</em> as a child process, with +<em>variable</em>=<em>x</em> added to its environment. </li> + <li> <tt>forx</tt> then exits 0. </li> +</ul> + +<h2> Options </h2> + +<ul> + <li> <tt>-p</tt> : run in parallel. Do not wait for an instance of +<em>loop...</em> to exit before spawning the next one. <tt>forx</tt> +will still wait for all instances of <em>loop</em> to terminate before +exiting, though. </li> + <li> <tt>-x</tt> <em>breakcodes</em> : <em>breakcodes</em> must +be a comma-separated list of exit codes. If the <tt>-p</tt> flag +hasn't been given and <em>loop</em> exits with one of the codes in <em>breakcodes</em>, +forx will not run the following instances of the loop, but exit immediately with the +same exit code. </li> +</ul> + +<h2> Notes </h2> + +<ul> + <li> You can start <em>loop</em> with "import <em>variable</em> unexport <em>variable</em>" +if you want variable substitution. </li> +</ul> + +</body> +</html> |