120 lines
3.5 KiB
HTML
120 lines
3.5 KiB
HTML
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<meta name="generator" content="HTML Tidy, see www.w3.org">
|
||
|
|
<meta http-equiv="Content-Type" content=
|
||
|
|
"text/html; charset=utf-8">
|
||
|
|
<title>ulimit - Set or display resource limits</title>
|
||
|
|
<LINK rel="stylesheet" type="text/css" href="../rzahg/ic.css">
|
||
|
|
</HEAD>
|
||
|
|
<body bgcolor="#FFFFFF">
|
||
|
|
<!-- Java sync-link -->
|
||
|
|
<SCRIPT LANGUAGE="Javascript" SRC="../rzahg/synch.js" TYPE="text/javascript"></SCRIPT>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
<h2>ulimit - Set or display resource limits</h2>
|
||
|
|
|
||
|
|
<strong>Synopsis</strong>
|
||
|
|
|
||
|
|
|
||
|
|
<p>
|
||
|
|
<strong>ulimit [ -HS ] [ -acdfmnst ] [</strong> <em>limit</em> <strong>]</strong>
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<p><strong>Description</strong></p>
|
||
|
|
|
||
|
|
<p>The <strong>ulimit</strong> utility sets or displays resource limits. The
|
||
|
|
resource limits apply to the current process and to any processes that are started
|
||
|
|
after the resource limit is set.</p>
|
||
|
|
|
||
|
|
<p>For each resource, there is a hard or maximum limit and a soft or current limit.
|
||
|
|
The soft limit can be changed to any value that is less than or equal to the hard
|
||
|
|
limit. The hard limit can be changed to any value that is greater than or equal to
|
||
|
|
the soft limit. The hard limit can only be increased by a user with *JOBCTL special
|
||
|
|
authority.</p>
|
||
|
|
|
||
|
|
<p>On i5/OS<SUP>(TM)</SUP>, only the file size (<strong>-f</strong>) and number of descriptors
|
||
|
|
(<strong>-n</strong>) resource limits can be set. All of the resource
|
||
|
|
limits can be displayed.</p>
|
||
|
|
|
||
|
|
<p><strong>Options</strong></p>
|
||
|
|
<dl>
|
||
|
|
<dt><strong>-a</strong></dt>
|
||
|
|
|
||
|
|
<dd>Display all of the resource limits.</dd>
|
||
|
|
|
||
|
|
<dt><strong>-c</strong></dt>
|
||
|
|
|
||
|
|
<dd>Display the resource limit for the maximum size of a core file in kilobytes.</dd>
|
||
|
|
|
||
|
|
<dt><strong>-d</strong></dt>
|
||
|
|
|
||
|
|
<dd>Display the resource limit for the maximum size of a process' data segment in kilobytes.</dd>
|
||
|
|
|
||
|
|
<dt><strong>-f</strong></dt>
|
||
|
|
|
||
|
|
<dd>Set or display the resource limit for the maximum size of a file in kilobytes.</dd>
|
||
|
|
|
||
|
|
<dt><strong>-H</strong></dt>
|
||
|
|
|
||
|
|
<dd>Set or display the hard limit for the resource.</dd>
|
||
|
|
|
||
|
|
<dt><strong>-m</strong></dt>
|
||
|
|
|
||
|
|
<dd>Display the resource limit for the maximum size of a process' total available storage.</dd>
|
||
|
|
|
||
|
|
<dt><strong>-n</strong></dt>
|
||
|
|
|
||
|
|
<dd>Set or display the resource limit for the maximum number of file descriptors that
|
||
|
|
can be opened by the process.</dd>
|
||
|
|
|
||
|
|
<dt><strong>-s</strong></dt>
|
||
|
|
|
||
|
|
<dd>Display the resource limit for the maximum size of the process' stack in kilobytes.</dd>
|
||
|
|
|
||
|
|
<dt><strong>-S</strong></dt>
|
||
|
|
|
||
|
|
<dd>Set or display the soft limit for the resource.</dd>
|
||
|
|
|
||
|
|
<dt><strong>-t</strong></dt>
|
||
|
|
|
||
|
|
<dd>Display the resource limit for the maximum amount of CPU time in seconds.</dd>
|
||
|
|
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<p><strong>Operands</strong></p>
|
||
|
|
|
||
|
|
<p>When <em>limit</em> is not specified, the value of the resource limit is displayed.
|
||
|
|
When the <strong>-H</strong> option is specified, the hard limit is displayed.
|
||
|
|
Otherwise, the soft limit is displayed.</p>
|
||
|
|
|
||
|
|
<p>When <em>limit</em> is specified, the value of the resource limit is set. The <em>limit</em>
|
||
|
|
can be an <a href="arithexp.htm">arithmetic expression</a> or the
|
||
|
|
string "unlimited" for no limit. If neither
|
||
|
|
the <strong>-H</strong> or <strong>-S</strong> options are specified, both the hard
|
||
|
|
and soft limits are set.</p>
|
||
|
|
|
||
|
|
<p>If no resource is specified, the default is the file size (<strong>-f</strong>)
|
||
|
|
resource limit.</p>
|
||
|
|
|
||
|
|
<p><strong>Exit Status</strong></p>
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li>0 when successful</li>
|
||
|
|
|
||
|
|
<li>>0 when unsuccessful</li>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<p><strong>Related information</strong></p>
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li><a href="umask.htm">umask - Get or set the file mode creation mask</a></li>
|
||
|
|
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|