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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><HTML><HEAD><TITLE>Bash Command-Line Options</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="Advanced Bash-Scripting Guide"HREF="index.html"><LINKREL="UP"TITLE="Command-Line Options"HREF="command-line-options.html"><LINKREL="PREVIOUS"TITLE="Command-Line Options"HREF="command-line-options.html"><LINKREL="NEXT"TITLE=" Important Files"HREF="files.html"><METAHTTP-EQUIV="Content-Style-Type"CONTENT="text/css"><LINKREL="stylesheet"HREF="common/kde-common.css"TYPE="text/css"><METAHTTP-EQUIV="Content-Type"CONTENT="text/html; charset=iso-8859-1"><METAHTTP-EQUIV="Content-Language"CONTENT="en"><LINKREL="stylesheet"HREF="common/kde-localised.css"TYPE="text/css"TITLE="KDE-English"><LINKREL="stylesheet"HREF="common/kde-default.css"TYPE="text/css"TITLE="KDE-Default"></HEAD><BODYCLASS="SECT1"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#AA0000"VLINK="#AA0055"ALINK="#AA0000"STYLE="font-family: sans-serif;"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">Advanced Bash-Scripting Guide: An in-depth exploration of the art of shell scripting</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="command-line-options.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom">Appendix F. Command-Line Options</TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="files.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="BASH-OPTIONS"></A>F.2. Bash Command-Line Options</H1><P><ANAME="CLOPTS"></A></P><P><ICLASS="FIRSTTERM">Bash</I> itself has a number of command-line options. Here are some of the more useful ones.</P><UL><LI><P><TTCLASS="OPTION">-c</TT></P><P><SPANCLASS="emphasis"><ICLASS="EMPHASIS">Read commands from the following string and assign any arguments to the <AHREF="variables2.html#POSPARAMREF">positional parameters</A>.</I></SPAN></P><P> <TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="90%"><TR><TD><PRECLASS="SCREEN"> <TTCLASS="PROMPT">bash$ </TT><TTCLASS="USERINPUT"><B>bash -c 'set a b c d; IFS="+-;"; echo "$*"'</B></TT> <TTCLASS="COMPUTEROUTPUT">a+b+c+d</TT> </PRE></TD></TR></TABLE> </P></LI><LI><P><TTCLASS="OPTION">-r</TT></P><P><TTCLASS="OPTION">--restricted</TT></P><P><SPANCLASS="emphasis"><ICLASS="EMPHASIS">Runs the shell, or a script, in <AHREF="restricted-sh.html#RESTRICTEDSHREF">restricted mode</A>.</I></SPAN></P></LI><LI><P><TTCLASS="OPTION">--posix</TT></P><P><SPANCLASS="emphasis"><ICLASS="EMPHASIS">Forces Bash to conform to <AHREF="sha-bang.html#POSIX2REF">POSIX</A> mode.</I></SPAN></P></LI><LI><P><TTCLASS="OPTION">--version</TT></P><P><SPANCLASS="emphasis"><ICLASS="EMPHASIS">Display Bash version information and exit.</I></SPAN></P></LI><LI><P><TTCLASS="OPTION">--</TT></P><P><SPANCLASS="emphasis"><ICLASS="EMPHASIS">End of options. Anything further on the command line is an argument, not an option.</I></SPAN></P></LI></UL></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="command-line-options.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="index.html"ACCESSKEY="H">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="files.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Command-Line Options</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="command-line-options.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Important Files</TD></TR></TABLE></DIV></BODY></HTML>?? 快捷鍵說(shuō)明
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