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Full Discussion: Python - store output of command to a variable
Top Forums Programming Python - store output of command to a variable Post 303007501 by atanubanerji on Friday 17th of November 2017 07:21:07 AM
Old 11-17-2017
Thank you very much Robin for your help.

I have to execute some action if the server is CentOS.

The server_description variable may or may not store CentOS key word among few other words. So I was thinking, if I could execute
"CentOS in server_description which would return either "True" or "False". If it is True, the python would perform some action. I have been advised to store the True or False value in another variable.

My problem is I am unable to store True or False in other variable, say, my_Check.

If I could do that, probably I could use the following -
Code:
if my_check == "True":
    do_something
else:
     do_otherthing

Could you please advice, how I can store a command's output, here, "CentOS in server_description in a variable (or any other python level command later) and use the value of the variable whenever required.
e.g.
Code:
server_description = "This is xyz abc of mno CentOS"
my_Check = "CentOS" in server_description
if my_Check == "True":
    print("This is CentOS")
else:
    print("This is NOT CentOS")

The output I am getting is "This is NOT CentOS"
CentOS 7.4 is OS version and Python 3.4.5
I could do it using shell, but I have been asked to use Python only, as the action to be performed based on the condition, if True or False, is already written in Python.
Please don't consider my objective is to print either CentOS or NOT CentOS, rather some other successfully written python code that I will be pasting in if or else section.

While testing, I found this, but not sure why it is not working...
Code:
>>> server_description = "CentOS"
>>> my_Check = "centos" in server_description
>>> my_Check
False
>>> my_Check = "CentOS" in server_description
>>> my_Check
True

Last edited by rbatte1; 11-17-2017 at 11:48 AM.. Reason: Converted HTML to CODE or ICODE tags and corrected some spelling
 

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LEARN ABOUT DEBIAN

lazygal.conf

LAZYGAL.CONF(5) 					   File formats and conventions 					   LAZYGAL.CONF(5)

NAME

       lazygal.conf - Configuration file for lazygal, a static web gallery generator.

DESCRIPTION

       The configuration file is an INI like file which configures lazygal. The format looks like this:

	   [sectionname]
	   variable = value
	   othervariable = othervalue

	   [othersection]
	   foo = bar

       Boolean values can be conveniently set in the following ways:

       o   For True: 1, yes, true, and on.

       o   For False: 0, no, false, and off.

       Please refer to the python ConfigParser documentation[1] for more information on the file format.

RUNTIME SECTION

       The runtime defines the runtime parameters.

       quiet
	   Boolean. Same as --quiet in lazygal(1) if True. (default is False).

       debug
	   Boolean. Same as --debug in lazygal(1) if True (default is False).

       check-all-dirs
	   Boolean. Same as --check-all-dirs in lazygal(1) if True. (default is False).

GLOBAL SECTION

       The global defines the global parameters. Those parameters apply to all the sub-galleries.

       destdir
	   Same as --output-directory=DEST_DIR in lazygal(1) (default is current directory).

       clean-destination
	   Boolean. Same as --clean-destination in lazygal(1) if True.

       dir-flattening-depth
	   Same as --dir-flattening-depth=LEVEL in lazygal(1).

       puburl
	   Same as --puburl=PUB_URL in lazygal(1).

       theme
	   Same as --theme=THEME in lazygal(1).

WEBGAL SECTION

       The webgal defines the parameters for a web-gallery.

       default-style
	   Same as --default-style=DEFAULT_STYLE in lazygal(1).

       webalbumpic-bg
	   Same as --webalbum-pic-bg=WEBALBUMPIC_BG in lazygal(1).

       webalbumpic-type
	   Same as --webalbum-pic-type=WEBALBUMPIC_BG in lazygal(1). If you set this to 'tidy' you may also consider setting webalbumpic-size (see
	   below) to something smaller than the default 200x150.

       webalbumpic-size
	   Size of picture mash-up representing galleries, eg. 200x150.

       image-size
	   Same as --image-size=IMAGE_SIZE in lazygal(1).

       thumbnail-size
	   Same as --thumbnail-size=THUMBNAIL_SIZE in lazygal(1).

       thumbs-per-page
	   Same as --thumbs-per-page=THUMBS_PER_PAGE in lazygal(1).

       sort-medias
	   Same as --pic-sort-by=ORDER in lazygal(1).

       sort-subgals
	   Same as --subgal-sort-by=ORDER in lazygal(1).

       original
	   Boolean. Same as --original in lazygal(1) if True (default is False).

       original-baseurl
	   Same as --orig-base=RELATIVE_PATH in lazygal(1).

       original-symlink
	   Boolean. Same as --orig-symlink in lazygal(1) if True (default is False).

       dirzip
	   Same as --make-dir-zip in lazygal(1) if True (default is False).

       jpeg-quality
	   Same as --quality=QUALITY in lazygal(1).

       jpeg-optimize
	   Boolean. Run an extra optimization pass for each generated thumbnail if True, the default.

       jpeg-progressive
	   Generate progressive JPEG images if True, the default.

       publish-metadata
	   Publish image metadata if True, the default: copy original image metadata in reduced picture, and include some information in the image
	   page.

TEMPLATE-VARS SECTION
       The template-vars defines the custom template variables. The variables and their value are listed in this section.

       Example 1. $footer in the default template

       For instance, $footer is a template variable in the default template. Its value can be defined with this configuration file:

	   [template-vars]
	   footer = <p>All pics are copyright 2011 me</p>

SEE ALSO

       lazygal(1).

AUTHOR

       This manual page was written for the Debian system (but may be used by others). Permission is granted to copy, distribute and/or modify
       this document under the terms of the GNU General Public License, Version 2 any later version published by the Free Software Foundation.

       On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.

COPYRIGHT

       Copyright (C) 2011

NOTES

	1.

		       the python ConfigParser documentation

	   http://docs.python.org/library/configparser.html

lazygal 							    August 2011 						   LAZYGAL.CONF(5)
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