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Top Forums Shell Programming and Scripting Unable to store "python --version" to a shell variable Post 302903231 by srinivasan.neel on Monday 26th of May 2014 09:11:01 AM
Old 05-26-2014
Unable to store "python --version" to a shell variable

Hi All,
I need to get the version of python installed and store it in a variable for later use. Whereas it is printing on the console instead of storing to variable. I am able to store output of ls command in a variable. Please check the below code :
Code:
root@myhost:/volumes/srini# cat python_version.sh 
python_version=python --version
echo "****"
echo $python_version
echo "****"
ls_output=ls -l python*
echo "****"
echo $ls_output
echo "****"

Please check the output of the code :
Code:
root@myhost:/volumes/srini# ./python_version.sh 
Python 2.6.8
****

****
****
-rwxr-xr-x 1 root root 147 May 26 09:35 python_version.sh
****

Please note, its able to store output of ls command in a variable, but not of python --version. Its directly displaying in console.

Regards,
Srinivasan

Last edited by srinivasan.neel; 05-26-2014 at 10:35 AM.. Reason: sorry for the typo, even after changing that also its not getting stored in variable
 

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UPDATE-PYTHON-MODULES(8)				      System Manager's Manual					  UPDATE-PYTHON-MODULES(8)

NAME
update-python-modules - byte-compile python modules SYNOPSIS
update-python-modules [options] [package.public [...]] DESCRIPTION
The update-python-modules command is part of the python-support bundle. update-python-modules is responsible for the byte-compilation of python modules. When used in byte-compilation mode, it will byte-compile modules references in the files given on the command line. When used in installation mode, it will byte-compile them once for each installed python version, and will make them available for all of them. At each invocation, with or without arguments, update-python-modules will check for installed python versions, and will build or remove modules according to new or removed versions since the last time it was run. ARGUMENTS
Arguments must be files or directories located in the /usr/share/python-support directory. Depending on their extension, they are treated differently. package.public A file listing public modules to install for each version. These modules must lie in /usr/share/pyshared or /usr/lib/pyshared. package.private A file listing private modules to byte-compile for one Python version. package/ A legacy directory hierarchy of public modules. The C extensions and portions that change with the Python version are to be found in /usr/lib/python-support/pythonX.Y/package/. package.dirs A legacy file listing directories where to find private modules. OPTIONS
-h, --help Show summary of options. -v, --verbose Detail all actions while they are performed. -b, --bytecompile Only accept to work on private modules. When given this option, update-python-modules will fail if passed references to public mod- ules. -i, --install Only accept to work on public modules. When given this option, update-python-modules will fail if passed references to public mod- ules. -c, --clean Clean modules instead of installing them. -a, --rebuild-all Rebuild all private modules. This is necessary when the default python version was changed, for example. -f, --force-rebuild-all Clean all modules (public and private), and rebuild them. FILES
/usr/lib/pymodules/pythonX.Y/ These directories contain the byte-compiled modules for version pythonX.Y. SEE ALSO
/usr/share/doc/python-support/README.gz AUTHOR
Josselin Mouette <joss@debian.org>. 18 Feb 2009 UPDATE-PYTHON-MODULES(8)
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