<!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>4.4.4 Header data records: The -H option</TITLE> <META NAME="description" CONTENT="4.4.4 Header data records: The -H option"> <META NAME="keywords" CONTENT="GMT_Docs"> <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_Docs.css"> <LINK REL="next" HREF="node46.html"> <LINK REL="previous" HREF="node39.html"> <LINK REL="up" HREF="node36.html"> <LINK REL="next" HREF="node46.html"> </HEAD> <BODY bgcolor="#ffffff"> <!--Navigation Panel--> <A NAME="tex2html3158" HREF="node46.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html3152" HREF="node36.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html3146" HREF="node44.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html3154" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <A NAME="tex2html3156" HREF="node255.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> <BR> <B> Next:</B> <A NAME="tex2html3159" HREF="node46.html">4.4.5 Portrait plot orientation:</A> <B> Up:</B> <A NAME="tex2html3153" HREF="node36.html">4.4 Standardized command line</A> <B> Previous:</B> <A NAME="tex2html3147" HREF="node44.html">4.4.3.5 Cartesian time axes</A> <B> <A NAME="tex2html3155" HREF="node1.html">Contents</A></B> <B> <A NAME="tex2html3157" HREF="node255.html">Index</A></B> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION001244000000000000000"> 4.4.4 Header data records: The <B>-H</B> option</A> </H2> <A NAME="18076"></A> <A NAME="18077"></A> <A NAME="sec:header"></A>The <B>-H</B>[<B>i</B>][<I>n_recs</I>] option lets <A NAME="tex2html1099" HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> know that input file(s) have one [Default] or more header records. If there are more than one header record you must specify the number after the <B>-H</B> option, e.g., <B>-H</B>4. The default number of header records if <B>-H</B> is used is one of the many parameters in the <U>.gmtdefaults4</U> file (<B>N_HEADER_RECS</B>), but can be overridden by <B>-H</B><I>n_header_recs</I>. Note that blank lines and records that be start with the character # are automatically skipped. Normally, programs that both read and write tables will output the header records that are found on input. Use <B>-Hi</B> to suppress the writing of header records. <P> <HR> <!--Navigation Panel--> <A NAME="tex2html3158" HREF="node46.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html3152" HREF="node36.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html3146" HREF="node44.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html3154" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <A NAME="tex2html3156" HREF="node255.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> <BR> <B> Next:</B> <A NAME="tex2html3159" HREF="node46.html">4.4.5 Portrait plot orientation:</A> <B> Up:</B> <A NAME="tex2html3153" HREF="node36.html">4.4 Standardized command line</A> <B> Previous:</B> <A NAME="tex2html3147" HREF="node44.html">4.4.3.5 Cartesian time axes</A> <B> <A NAME="tex2html3155" HREF="node1.html">Contents</A></B> <B> <A NAME="tex2html3157" HREF="node255.html">Index</A></B> <!--End of Navigation Panel--> <ADDRESS> Paul Wessel 2010-01-14 </ADDRESS> </BODY> </HTML>
