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Full Discussion: Shell script to run a python program on multiple entries in a file
Top Forums Shell Programming and Scripting Shell script to run a python program on multiple entries in a file Post 302470907 by ad23 on Thursday 11th of November 2010 11:01:01 AM
Old 11-11-2010
Shell script to run a python program on multiple entries in a file
Hello

I am trying to run a python program using shell script, which takes a single argument from a file.

This file has one entry per line :
Code:
1aaa
2bbb
3ccc
4ddd
5eee
...
...
...

My shell script runs the program, only for the last entry :

Code:
#!/bin/sh
IFS=$'\n'

for line in $(cat my_filename);
do
        python my_program.py $line > output.file
done

Can someone help me with this?
I need to run this program for all the entries (per line) in my file.

Thanks!
 

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LEARN ABOUT LINUX

dh_python

DH_PYTHON(1)							     Debhelper							      DH_PYTHON(1)

NAME

       dh_python - calculates Python dependencies and adds postinst and prerm Python scripts (deprecated)

SYNOPSIS

       dh_python [debhelperoptions] [-n] [-V version] [moduledirs...]

DESCRIPTION

       Note: This program is deprecated. You should use dh_pysupport or dh_pycentral instead. This program will do nothing if debian/pycompat or a
       Python-Version control file field exists.

       dh_python is a debhelper program that is responsible for generating the ${python:Depends} substitutions and adding them to substvars files.
       It will also add a postinst and a prerm script if required.

       The program will look at Python scripts and modules in your package, and will use this information to generate a dependency on python, with
       the current major version, or on pythonX.Y if your scripts or modules need a specific python version. The dependency will be substituted
       into your package's control file wherever you place the token ${python:Depends}.

       If some modules need to be byte-compiled at install time, appropriate postinst and prerm scripts will be generated. If already byte-
       compiled modules are found, they are removed.

       If you use this program, your package should build-depend on python.

OPTIONS

       module dirs
	   If your package installs Python modules in non-standard directories, you can make dh_python check those directories by passing their
	   names on the command line. By default, it will check /usr/lib/site-python, /usr/lib/$PACKAGE, /usr/share/$PACKAGE,
	   /usr/lib/games/$PACKAGE, /usr/share/games/$PACKAGE and /usr/lib/python?.?/site-packages.

	   Note: only /usr/lib/site-python, /usr/lib/python?.?/site-packages and the extra names on the command line are searched for binary (.so)
	   modules.

       -V version
	   If the .py files your package ships are meant to be used by a specific pythonX.Y version, you can use this option to specify the
	   desired version, such as 2.3. Do not use if you ship modules in /usr/lib/site-python.

       -n, --noscripts
	   Do not modify postinst/prerm scripts.

CONFORMS TO

       Debian policy, version 3.5.7

       Python policy, version 0.3.7

SEE ALSO

       debhelper(7)

       This program is a part of debhelper.

AUTHOR

       Josselin Mouette <joss@debian.org>

       most ideas stolen from Brendan O'Dea <bod@debian.org>

8.9.0ubuntu2.1							    2012-06-12							      DH_PYTHON(1)
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