Question

What are commands in Python? Give examples to support your answer.

Answer 1

its my favorite topic so it can help you a lot

The commands module contains wrapper functions for os.popen() which take a system command as a string and return any output generated by the command and, optionally, the exit status.

The subprocess module provides more powerful facilities for spawning new processes and retrieving their results. Using the subprocess module is preferable to using the commands module.

Example:

>>> import commands

>>> commands.getstatusoutput('ls /bin/ls')

(0, '/bin/ls')

>>> commands.getstatusoutput('cat /bin/junk')

(256, 'cat: /bin/junk: No such file or directory')

>>> commands.getstatusoutput('/bin/junk')

(256, 'sh: /bin/junk: not found')

>>> commands.getoutput('ls /bin/ls')

'/bin/ls'

>>> commands.getstatus('/bin/ls')

'-rwxr-xr-x  1 root        13352 Oct 14  1994 /bin/ls'

hope samajh me aaya hoga