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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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PYTHON-CONFIG(1)					      General Commands Manual						  PYTHON-CONFIG(1)

NAME
python-config - output build options for python C/C++ extensions or embedding SYNOPSIS
python-config [ --prefix ] [ --exec-prefix ] [ --includes ] [ --libs ] [ --cflags ] [ --ldflags ] [ --help ] DESCRIPTION
python-config helps compiling and linking programs, which embed the Python interpreter, or extension modules that can be loaded dynamically (at run time) into the interpreter. OPTIONS
--cflags print the C compiler flags. --ldflags print the flags that should be passed to the linker. --includes similar to --cflags but only with -I options (path to python header files). --libs similar to --ldflags but only with -l options (used libraries). --prefix prints the prefix (base directory) under which python can be found. --exec-prefix print the prefix used for executable program directories (such as bin, sbin, etc). --help print the usage message. EXAMPLES
To build the singe-file c program prog against the python library, use gcc $(python-config --cflags --ldflags) progr.cpp -o progr.cpp The same in a makefile: CFLAGS+=$(shell python-config --cflags) LDFLAGS+=$(shell python-config --ldflags) all: progr To build a dynamically loadable python module, use gcc $(python-config --cflags --ldflags) -shared -fPIC progr.cpp -o progr.so SEE ALSO
python (1) http://docs.python.org/extending/extending.html /usr/share/doc/python/faq/extending.html AUTHORS
This manual page was written by Johann Felix Soden <johfel@gmx.de> for the Debian project (and may be used by others). November 27, 2011 PYTHON-CONFIG(1)
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