new_contents: #!/usr/bin/python
  import os
  
  os.system("cgx -b b.fbd")
  os.system("cgx -b sh.fbd")
  os.system("cgx -b sm.fbd")
  os.system("cgx -b sr.fbd")
  os.system("cgx -b scd.fbd")
  os.system("cgx -b sck.fbd")
  
  
  
subject: add test.py