<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 2002-2-1 (1.71) original version by: Nikos Drakos, CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>1.3.2 Piping ()</TITLE> <META NAME="description" CONTENT="1.3.2 Piping ()"> <META NAME="keywords" CONTENT="GMT_Tutorial"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META NAME="Generator" CONTENT="LaTeX2HTML v2002-2-1"> <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> <LINK REL="STYLESHEET" HREF="GMT_Tutorial.css"> <LINK REL="next" HREF="node17.html"> <LINK REL="previous" HREF="node15.html"> <LINK REL="up" HREF="node14.html"> <LINK REL="next" HREF="node17.html"> </HEAD> <BODY bgcolor="#ffffff"> <!--Navigation Panel--> <A NAME="tex2html613" HREF="node17.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html607" HREF="node14.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html601" HREF="node15.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html609" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <A NAME="tex2html611" HREF="node63.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> <BR> <B> Next:</B> <A NAME="tex2html614" HREF="node17.html">1.3.3 Standard error (stderr)</A> <B> Up:</B> <A NAME="tex2html608" HREF="node14.html">1.3 The UNIX Environment:</A> <B> Previous:</B> <A NAME="tex2html602" HREF="node15.html">1.3.1 Redirection</A> <B> <A NAME="tex2html610" HREF="node1.html">Contents</A></B> <B> <A NAME="tex2html612" HREF="node63.html">Index</A></B> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION00332000000000000000"> 1.3.2 Piping (<IMG WIDTH="8" HEIGHT="31" ALIGN="MIDDLE" BORDER="0" SRC="img1.png" ALT="$\vert$">)</A> </H2> <A NAME="439"></A> <A NAME="440"></A> <P> Sometimes we want to use the output from one program as input to another program. This is achieved with <I>UNIX</I> pipes: <P> <PRE> Someprogram | GMTprogram1 | GMTprogram2 > Output-file (or | lp) </PRE> <P> <HR> <!--Navigation Panel--> <A NAME="tex2html613" HREF="node17.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html607" HREF="node14.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html601" HREF="node15.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html609" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <A NAME="tex2html611" HREF="node63.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> <BR> <B> Next:</B> <A NAME="tex2html614" HREF="node17.html">1.3.3 Standard error (stderr)</A> <B> Up:</B> <A NAME="tex2html608" HREF="node14.html">1.3 The UNIX Environment:</A> <B> Previous:</B> <A NAME="tex2html602" HREF="node15.html">1.3.1 Redirection</A> <B> <A NAME="tex2html610" HREF="node1.html">Contents</A></B> <B> <A NAME="tex2html612" HREF="node63.html">Index</A></B> <!--End of Navigation Panel--> <ADDRESS> Paul Wessel 2010-07-14 </ADDRESS> </BODY> </HTML>