Using system command in different softwares

Matlab: ! COMMAND Grads: ! COMMAND Fortran: call system(COMMAND, status) C: system("COMMAND") VB: shell "COMMAND" Ferret: sp system command Python: import os or os.system('COMMAND') PHP: system('command',$returnvalue) or exec('command',$output, $returnvalue) R: system('command') Continue.....