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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta name="generator" content="HTML Tidy, see www.w3.org"><link type="text/css" rel="stylesheet" href="../utilities/style.css"><title>Utilities</title></head><body bgcolor="white"><basefont size="3"> <center><hr size="2" noshade>The Open Group Base Specifications, Issue 6IEEE Std 1003.1, 2003 Edition<br>Copyright © 2001-2003 The IEEE and The Open Group, All Rights reserved.<hr size="2" noshade></center><h3><font face="Helvetica"><IMG ALIGN=TOP SRC="../images/index.gif" ALT="">Special Built-in Utilities</font></h3><ul><li><a href="../utilities/break.html">break</a> - exit from for, while, or until loop (Special Built-in Utility)<li><a href="../utilities/colon.html">colon</a> - null utility (Special Built-in Utility)<li><a href="../utilities/continue.html">continue</a> - continue for, while or until loop (Special Built-in Utility)<li><a href="../utilities/dot.html">dot</a> - execute commands in current environment (Special Built-in Utility)<li><a href="../utilities/eval.html">eval</a> - construct command by concatenating arguments (Special Built-in Utility)<li><a href="../utilities/exec.html">exec</a> - execute commands and open, close, or copy file descriptors (Special Built-in Utility)<li><a href="../utilities/exit.html">exit</a> - cause the shell to exit (Special Built-in Utility)<li><a href="../utilities/export.html">export</a> - set export attribute for variables (Special Built-in Utility)<li><a href="../utilities/readonly.html">readonly</a> - set read-only attribute for variables (Special Built-in Utility)<li><a href="../utilities/return.html">return</a> - return from a function (Special Built-in Utility)<li><a href="../utilities/set.html">set</a> - set or unset options and positional parameters (Special Built-in Utility)<li><a href="../utilities/shift.html">shift</a> - shift positional parameters (Special Built-in Utility)<li><a href="../utilities/times.html">times</a> - write process times (Special Built-in Utility)<li><a href="../utilities/trap.html">trap</a> - trap signals (Special Built-in Utility)<li><a href="../utilities/unset.html">unset</a> - unset values and attributes of variables and functions (Special Built-in Utility)</ul><center><hr size="2" noshade><font size="2">Copyright © 2001-2003 The IEEE and The Open Group, All Rights Reserved<br></font></center><hr size="2" noshade></body></html>⌨️ 快捷键说明
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