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Full Discussion: Tab and Enter
Top Forums UNIX for Dummies Questions & Answers Tab and Enter Post 302488392 by hbar on Monday 17th of January 2011 03:41:38 AM
Old 01-17-2011
Thanks. Let me try once again. My example may be specific to gnuplot. But it may arise to other cases.

If run the follwing commands :
Code:
#!/bin/bash
echo "plot  \ " > temp
for f in 2 3
do
echo "x**"$f", \ " >> temp
done
echo "x**4" >> temp
cat temp | gnuplot -persist
rm -f temp

=======

I find the following error messages :
Code:
gnuplot> plot  \ 
               ^
         line 0: invalid character \


gnuplot> x**2, \ 
               ^
         line 0: invalid character \


gnuplot> x**3, \ 
               ^
         line 0: invalid character \


gnuplot> x**4
         ^
         line 0: invalid command

====================

Whereas
Code:
echo "p x**2, x**3, x**4"|gnuplot -persist

works successfully though it's the same in principle.


Hope I could clarify this time. My observation is that the newline separator (" \") is not recognized by the shell always.

I have attached the shell script as well. You may need to install gnuplot in case it's not installed by your distribution.

Thanks and best regards.
shgnu.txt (277 Bytes) 
Last edited by Franklin52; 01-17-2011 at 04:49 AM.. Reason: Please use code tags
 

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LEARN ABOUT DEBIAN

xpl2gpl

XPL2GPL(1)						      General Commands Manual							XPL2GPL(1)

NAME

       xpl2gpl - Convert tcptrace-style xplot input to gnuplot input.

SYNOPSIS

       xpl2gpl [-s] <file_name>

DESCRIPTION

       xpl2gpl	is a utility that converters tcptrace-style xplot input to gnuplot input.  This converter gives a nearly perfect gnuplot reproduc-
       tion of the corresponding xplot graph.

OPTIONS

       -s     Seperate files.  If you wish to plot only some data from the xpl file, you may use the -s option, which generates a bunch  of  data-
	      files filtered based on the color and plotting style.

EXAMPLES

       xpl2gpl foo.xpl

       This  would  produce files by the names "foo.gpl", "foo.datasets" and "foo.labels".  Load the file "file_name.gpl" in gnuplot and it should
       give you the plot.

NOTES

       xpl2gpl is provided for convenience, as gnuplot is more commonly installed than the xplot package  that	tcptrace  typically  expects,  and
       because xplot has not always been available in Debian. If possible, you should consider installing the xplot-xplot.org package and using it
       instead of using xpl2gpl.

AUTHOR

       Avinash Lakhiani (no known email address)

       This manual page was written by Noah Meyerhans <noahm@debian.org> for the Debian project and may be used freely and without restriction	by
       others.

SEE ALSO

       tcptrace(1)

								    Aug 8, 2009 							XPL2GPL(1)
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