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<HTML><!--Distributed by F --><HEAD><TITLE>[Chapter 12] 12.8 Job Control in a Nutshell </TITLE><METANAME="DC.title"CONTENT="UNIX Power Tools"><METANAME="DC.creator"CONTENT="Jerry Peek, Tim O'Reilly & Mike Loukides"><METANAME="DC.publisher"CONTENT="O'Reilly & Associates, Inc."><METANAME="DC.date"CONTENT="1998-08-04T21:36:32Z"><METANAME="DC.type"CONTENT="Text.Monograph"><METANAME="DC.format"CONTENT="text/html"SCHEME="MIME"><METANAME="DC.source"CONTENT="1-56592-260-3"SCHEME="ISBN"><METANAME="DC.language"CONTENT="en-US"><METANAME="generator"CONTENT="Jade 1.1/O'Reilly DocBook 3.0 to HTML 4.0"><LINKREV="made"HREF="mailto:online-books@oreilly.com"TITLE="Online Books Comments"><LINKREL="up"HREF="ch12_01.htm"TITLE="12. Job Control"><LINKREL="prev"HREF="ch12_07.htm"TITLE="12.7 Stop Background Output with stty tostop "><LINKREL="next"HREF="ch12_09.htm"TITLE="12.9 Running Multiple Shell Sessions with screen "></HEAD><BODYBGCOLOR="#FFFFFF"TEXT="#000000"><DIVCLASS="htmlnav"><H1><IMGSRC="gifs/smbanner.gif"ALT="UNIX Power Tools"USEMAP="#srchmap"BORDER="0"></H1><MAPNAME="srchmap"><AREASHAPE="RECT"COORDS="0,0,466,58"HREF="index.htm"ALT="UNIX Power Tools"><AREASHAPE="RECT"COORDS="467,0,514,18"HREF="jobjects/fsearch.htm"ALT="Search this book"></MAP><TABLEWIDTH="515"BORDER="0"CELLSPACING="0"CELLPADDING="0"><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch12_07.htm"TITLE="12.7 Stop Background Output with stty tostop "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 12.7 Stop Background Output with stty tostop "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><B><FONTFACE="ARIEL,HELVETICA,HELV,SANSERIF"SIZE="-1">Chapter 12<BR>Job Control</FONT></B></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch12_09.htm"TITLE="12.9 Running Multiple Shell Sessions with screen "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 12.9 Running Multiple Shell Sessions with screen "BORDER="0"></A></TD></TR></TABLE> <HRALIGN="LEFT"WIDTH="515"TITLE="footer"></DIV><DIVCLASS="SECT1"><H2CLASS="sect1"><ACLASS="title"NAME="UPT-ART-7400">12.8 Job Control in a Nutshell </A></H2><PCLASS="para">Unless otherwise noted, these commands apply only to the C shell,Korn shell, and <EMCLASS="emphasis">bash</EM>:</P><ULCLASS="itemizedlist"><LICLASS="listitem"><PCLASS="para"><SPANCLASS="link"><CODECLASS="replaceable"><I>command </I></CODE><CODECLASS="literal">&</CODE> (<ACLASS="linkend"HREF="ch01_26.htm"TITLE="What a Multiuser System Can Do for You ">1.26</A>, <ACLASS="linkend"HREF="ch12_01.htm#UPT-ART-0439"TITLE="Job Control: Work Faster, Stop Runaway Jobs ">12.1</A>)</SPAN>:Run <CODECLASS="replaceable"><I>command</I></CODE> in the background. You can continue to execute jobs in the foreground. All shells.</P></LI><LICLASS="listitem"><PCLASS="para"><SPANCLASS="link"><CODECLASS="literal">CTRL-c</CODE> (<ACLASS="linkend"HREF="ch38_09.htm"TITLE="Killing Foreground Jobs ">38.9</A>)</SPAN>:Kill the current foreground job by sending the<SPANCLASS="link"><EMCLASS="emphasis">INTR</EM> signal (<ACLASS="linkend"HREF="ch38_08.htm"TITLE="What Are Signals? ">38.8</A>)</SPAN>.All shells.</P></LI><LICLASS="listitem"><PCLASS="para"><SPANCLASS="link"><CODECLASS="literal">CTRL-z</CODE> (<ACLASS="linkend"HREF="ch12_01.htm#UPT-ART-0439"TITLE="Job Control: Work Faster, Stop Runaway Jobs ">12.1</A>, <ACLASS="linkend"HREF="ch12_04.htm"TITLE="Job Control and autowrite: Real Time Savers! ">12.4</A>)</SPAN>:Suspend the current foreground job by sending the<SPANCLASS="link"><EMCLASS="emphasis">TSTP</EM> signal (<ACLASS="linkend"HREF="ch38_08.htm"TITLE="What Are Signals? ">38.8</A>)</SPAN>.</P></LI><LICLASS="listitem"><PCLASS="para">Suspend a shell with the<SPANCLASS="link"><EMCLASS="emphasis">suspend</EM> command (<ACLASS="linkend"HREF="ch22_22.htm"TITLE="The su Command Isn't Just for the Superuser ">22.22</A>)</SPAN>.</P></LI><LICLASS="listitem"><PCLASS="para">Suspend a background job with the<SPANCLASS="link"><EMCLASS="emphasis">stop</EM> command or an alias that does the same thing (<ACLASS="linkend"HREF="ch12_05.htm"TITLE="System Overloaded? Try Stopping Some Jobs ">12.5</A>)</SPAN>.</P></LI><LICLASS="listitem"><PCLASS="para"><SPANCLASS="link"><CODECLASS="literal">bg %</CODE><CODECLASS="replaceable"><I>num</I></CODE> (<ACLASS="linkend"HREF="ch12_01.htm#UPT-ART-0439"TITLE="Job Control: Work Faster, Stop Runaway Jobs ">12.1</A>)</SPAN>:Let a stopped job (by job number <CODECLASS="replaceable"><I>num</I></CODE>) continue in the background.</P></LI><LICLASS="listitem"><PCLASS="para"><SPANCLASS="link"><CODECLASS="literal">fg %</CODE><CODECLASS="replaceable"><I>num</I></CODE> (<ACLASS="linkend"HREF="ch12_01.htm#UPT-ART-0439"TITLE="Job Control: Work Faster, Stop Runaway Jobs ">12.1</A>)</SPAN>:Put a background job or a stopped job (by job number <CODECLASS="replaceable"><I>num</I></CODE>) into the foreground.</P></LI><LICLASS="listitem"><PCLASS="para"><SPANCLASS="link"><CODECLASS="literal">kill %</CODE><CODECLASS="replaceable"><I>num</I></CODE> (<ACLASS="linkend"HREF="ch12_01.htm#UPT-ART-0439"TITLE="Job Control: Work Faster, Stop Runaway Jobs ">12.1</A>)</SPAN>:Kill an arbitrary background job (by job number <CODECLASS="replaceable"><I>num</I></CODE>).</P></LI><LICLASS="listitem"><PCLASS="para"><SPANCLASS="link"><CODECLASS="literal">kill </CODE><CODECLASS="replaceable"><I>pid</I></CODE> (<ACLASS="linkend"HREF="ch38_10.htm"TITLE="Destroying Processes with kill ">38.10</A>)</SPAN>:Kill an arbitrary job (by process ID number <CODECLASS="replaceable"><I>num</I></CODE>). All shells.</P></LI><LICLASS="listitem"><PCLASS="para"><SPANCLASS="link"><CODECLASS="literal">jobs</CODE> (<ACLASS="linkend"HREF="ch12_01.htm#UPT-ART-0439"TITLE="Job Control: Work Faster, Stop Runaway Jobs ">12.1</A>)</SPAN>:List background and stopped jobs and their job numbers.</P></LI><LICLASS="listitem"><PCLASS="para"><SPANCLASS="link"><CODECLASS="literal">set notify</CODE> (<ACLASS="linkend"HREF="ch12_06.htm"TITLE="Notification When Jobs Change State ">12.6</A>)</SPAN>:Immediate job-state change notices.</P></LI><LICLASS="listitem"><PCLASS="para"><SPANCLASS="link"><CODECLASS="literal">stty tostop</CODE> (<ACLASS="linkend"HREF="ch12_07.htm"TITLE="Stop Background Output with stty tostop ">12.7</A>)</SPAN>:Automatically stop background processes if theytry writing to the screen.</P></LI></UL><DIVCLASS="sect1info"><PCLASS="SECT1INFO">- <SPANCLASS="authorinitials">ML</SPAN></P></DIV></DIV><DIVCLASS="htmlnav"><P></P><HRALIGN="LEFT"WIDTH="515"TITLE="footer"><TABLEWIDTH="515"BORDER="0"CELLSPACING="0"CELLPADDING="0"><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch12_07.htm"TITLE="12.7 Stop Background Output with stty tostop "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 12.7 Stop Background Output with stty tostop "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><ACLASS="book"HREF="index.htm"TITLE="UNIX Power Tools"><IMGSRC="gifs/txthome.gif"SRC="gifs/txthome.gif"ALT="UNIX Power Tools"BORDER="0"></A></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch12_09.htm"TITLE="12.9 Running Multiple Shell Sessions with screen "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 12.9 Running Multiple Shell Sessions with screen "BORDER="0"></A></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172">12.7 Stop Background Output with stty tostop </TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><ACLASS="index"HREF="index/idx_0.htm"TITLE="Book Index"><IMGSRC="gifs/index.gif"SRC="gifs/index.gif"ALT="Book Index"BORDER="0"></A></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172">12.9 Running Multiple Shell Sessions with screen </TD></TR></TABLE><HRALIGN="LEFT"WIDTH="515"TITLE="footer"><IMGSRC="gifs/smnavbar.gif"SRC="gifs/smnavbar.gif"USEMAP="#map"BORDER="0"ALT="The UNIX CD Bookshelf Navigation"><MAPNAME="map"><AREASHAPE="RECT"COORDS="0,0,73,21"HREF="../index.htm"ALT="The UNIX CD Bookshelf"><AREASHAPE="RECT"COORDS="74,0,163,21"HREF="index.htm"ALT="UNIX Power Tools"><AREASHAPE="RECT"COORDS="164,0,257,21"HREF="../unixnut/index.htm"ALT="UNIX in a Nutshell"><AREASHAPE="RECT"COORDS="258,0,321,21"HREF="../vi/index.htm"ALT="Learning the vi Editor"><AREASHAPE="RECT"COORDS="322,0,378,21"HREF="../sedawk/index.htm"ALT="sed & awk"><AREASHAPE="RECT"COORDS="379,0,438,21"HREF="../ksh/index.htm"ALT="Learning the Korn Shell"><AREASHAPE="RECT"COORDS="439,0,514,21"HREF="../lrnunix/index.htm"ALT="Learning the UNIX Operating System"></MAP></DIV></BODY></HTML>⌨️ 快捷键说明
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