blob: f0bdc7bd79aa2f0bd44f565d0f920b6dd598ad36 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Language" content="en" />
<title>s6-portable-utils: the s6-expr program</title>
<meta name="Description" content="s6-portable-utils: the s6-expr program" />
<meta name="Keywords" content="s6-portable-utils command s6-expr expr" />
<!-- <link rel="stylesheet" type="text/css" href="//skarnet.org/default.css" /> -->
</head>
<body>
<p>
<a href="index.html">s6-portable-utils</a><br />
<a href="//skarnet.org/software/">Software</a><br />
<a href="//skarnet.org/">skarnet.org</a>
</p>
<h1> The <tt>s6-expr</tt> program </h1>
<p>
s6-expr evaluates an expression and writes the result to stdout.
</p>
<h2> Interface </h2>
<pre>
s6-expr <em>expression...</em>
</pre>
<p>
s6-expr acts as the generic
<a href="http://pubs.opengroup.org/onlinepubs/9699919799/utilities/expr.html">expr</a> utility,
except that the <strong>:</strong> operator (pattern matching) is not supported.
</p>
<p>
s6-expr accepts an arbitrary number of arguments.
</p>
<h2> Posixness </h2>
<p>
s6-expr <strong>is not</strong> suitable as a Single Unix
<a href="http://pubs.opengroup.org/onlinepubs/9699919799/utilities/expr.html">expr</a>
program; however, if you are never using the pattern matching functionality, s6-expr
scrupulously follows the rest of the specification.
</p>
</body>
</html>
|
