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Full Discussion: xargs and gnuplot
Top Forums Shell Programming and Scripting xargs and gnuplot Post 302354787 by rubin on Saturday 19th of September 2009 07:40:05 PM
Old 09-19-2009
Quote:
Originally Posted by paulianna2002
...
If I run 'myscript.sh file1.dat file2.dat', it works as expected and gnuplot waits for me to press the enter key before moving onto the next plot.

But, if I do something like 'ls file*.dat | xargs myscript.sh' gnuplot runs through all of the plots without waiting for me to press enter.

So, gnuplot is getting something from stdin effectively making my pause commands useless.

Any ideas would be greatly appreciated.

Thanks in advance.
Maybe ls ...| xargs ... is not needed, but if that's the case, then try:

Code:
printf "%s\n" file*.dat | xargs -n1 -p myscript.sh

Also the pause -1 records might need to be removed from the gnuplot command file.
 

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LEARN ABOUT CENTOS

bno_plot

BNO_PLOT(1)															       BNO_PLOT(1)

NAME

       bno_plot - generate interactive 3D plot of IO blocks and sizes

SYNOPSIS

       bno_plot [ -h | --help ]
		[ -v | --verbose ]
		[ -K | --keys-below ]
		[ <file...> ]

DESCRIPTION

       bno_plot  is  a	visualization  tool  for the block layer IO tracing tool called blktrace(8).  As noted in its documentation, blktrace is a
       block layer IO tracing mechanism which provides detailed information about request queue operations up to user space.

       bno_plot utilizes gnuplot to generate a 3D plot of the block number output from btt.  If no <files> are	specified,  it	will  utilize  all
       files generated after btt was run with -B blknos (meaning: all files of the form blknos*[rw].dat).

       The -K option forces bno_plot to put the keys below the graph.  If it is not specified, all keys for input files are put in the upper right
       corner of the graph. If the number of devices exceed 10, then bno_plot will automatically push the keys under the graph.

       To use this utility, the gnuplot package needs to be installed.

       To exit the plotter, enter 'quit' or ^D at the 'gnuplot> ' prompt.

AUTHORS

       bno_plot was written by Alan D. Brunelle.  This man page was created from the blktrace documentation by Bas Zoetekouw.

REPORTING BUGS

       Report bugs to <linux-btrace@vger.kernel.org>

COPYRIGHT

       Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
       This  is  free  software.   You	 may   redistribute   copies   of   it	 under	 the   terms   of   the   GNU	General   Public   License
       <http://www.gnu.org/licenses/gpl.html>.	There is NO WARRANTY, to the extent permitted by law.
       This  manual  page  was	created  for Debian by Bas Zoetekouw.  It was derived from the documentation provided by the authors and it may be
       used, distributed and modified under the terms of the GNU General Public License, version 2.
       On Debian systems, the text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-2.

SEE ALSO

       btt (1), gnuplot (1), blktrace (8), blkparse (1), verify_blkparse (1), blkrawverify (1)

blktrace git-20080213182518					 February 22, 2007						       BNO_PLOT(1)
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