content: from subprocess import Popen as pop
  
  pop('gcc --version', shell=False)
  pop('/bin/gcc --version', shell=False)
  pop(var, shell=False)
  
  pop(['ls', '-l'], shell=False)
  pop(['/bin/ls', '-l'], shell=False)
  
  pop('../ls -l', shell=False)
  
  pop('c:\\hello\\something', shell=False)
  pop('c:/hello/something_else', shell=False)
  