Why Command Line arguments required

• Telling the command/utility which option to use.
• Informing the utility/command which file or group of files to process (reading/writing of files).
• Following script is used to print command line argument and will show you how to access them: http://siber.cankaya.edu.tr/SystemsProgramming/cfiles/demodemo

  #!/bin/sh
  #
  # Script that demos, command line args
  #
  echo "Total number of command line argument are $#"
  echo "$0 is script name"
  echo "$1 is first argument"
  echo "$2 is second argument"
  echo "All of them are :- $* or $@"