Sophie: GMT-doc-4.5.3-3.fc14 noarch

GMT-doc-4.5.3-3.fc14.noarch.rpm

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<H2><A NAME="SECTION00331000000000000000">
1.3.1 Redirection</A>
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<P>
Most <A NAME="tex2html84"
  HREF="http://gmt.soest.hawaii.edu"><B>GMT</B></A> programs read their input from the terminal (called
<I>stdin</I>) or from files, and write their output to the
terminal (called <I>stdout</I>).  To use files instead one can
use <I>UNIX</I> redirection:

<P>
<PRE>
GMTprogram input-file &gt; output-file
GMTprogram &lt; input-file &gt; output-file
GMTprogram input-file &gt;&gt; output-file       # Append to existing file
</PRE>

<P>
In this example, and in all those to follow, it is assumed that you do not have the shell
variable <B>noclobber</B> set. If you do, it prevents accidental overwriting of existing files.
That may be a noble cause, but it is extremely annoying. So please, <B>unset noclobber</B>.

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<ADDRESS>
Paul Wessel
2010-07-14
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