Friday, September 1, 2017

The beauty of Python: subprocess module - part 004 .

This series of python tutorials that we started at the beginning of this blog and called "The beauty of Python" is part of the series of tutorials aimed at the simplicity and beauty of the python programming language.
The main goal for us is how to use this programming language in everyday life with different tasks.
Today I will come up with examples to cover this goal and show you how to use the subprocess python module.
  • using the powershell with python :
  • >>> import subprocess
    >>> process=subprocess.Popen(["powershell","Get-Childitem C:\\Windows\\*.log"],stdout=subprocess.PIPE);
    >>> result=process.communicate()[0]
    >>> print result
  • get and print the hostname :
  • >>> print subprocess.check_output("hostname")
  • print the output of ping command :
  • >>> print subprocess.check_output("ping localhost", shell=True)
  • print the output of dir command :
  • >>> cmd = 'dir *'
    >>> supcmd = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    >>> print supcmd.communicate()[0]
    
  • run the python script like python shell :
  • >>> import sys
    >>> import subprocess
    >>> pid = subprocess.Popen([sys.executable, "calc.py"])

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