Passing data to system command
Chris Hieronymus
christoph.hieronymus at geo.uu.se
Sun Jun 18 14:55:58 EDT 2006
Hi,
I have a bunch of x-y data contained in an array. I would like to
plot the data using an
external program (psxy in GMT). The plotting program takes x-y
couples as standard
input. How do I get the data into the system call? I used to do
things in csh and awk,
i.e., something like
awk '{<some manipulations here>; print $1, $2}' filename | psxy <some
options> >! output.ps
The reason I'm trying to use python is because the manipulations are
getting too cumbersome
in awk. Now I have all the manipulations done in python, but I'm
missing that last step.
I've tried various things with os.system, popen, and subprocess, but
so far without success.
Does anyone know how to do this?
chris
------------------------------------------------------------------------
-------------------------------------------
Christoph
Hieronymus
christoph.hieronymus at geo.uu.se
Associate
Professor
phone: (+46) 18-471 2383
Uppsala
University
fax: (+46) 18-501 110
Dept. of Earth Sciences (Geophysics)
Villavägen 16
SE-752 36 Uppsala, Sweden
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