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Python | How to get size of all log files in a directory with subprocess python

gcptutorials.com Python

Python subprocess module is very useful is in automating Linux system administration tasks. Below is the code snippet for getting size of all log files inside "/var/log" directory in Python with subprocess module.

  • Create a file with name "gcptutorials.py" and write below code.
    • 
  #!/usr/bin/python3

  # Import Subprocess module
  from subprocess import Popen, PIPE
  
  # Command to get size of all log files in "/var/log" directory
  cmd = 'find /var/log/ -name "*.log" -exec du -sh {} \;'

  output = Popen(cmd, stdout=PIPE, shell=True)
  for line in output.stdout.readlines():
          print(line.decode('utf-8'))
  • Run the python file with below command and check the output

    • >> python3 gcptutorials.py

  • Sample output

    • 24K /var/log/tuned/tuned.log
    24K /var/log/anaconda/anaconda.log
    24K /var/log/anaconda/X.log
    32K /var/log/anaconda/program.log
    112K /var/log/anaconda/packaging.log
    88K /var/log/anaconda/storage.log
    4.0K /var/log/anaconda/ifcfg.log

    Category: Python