1. The Script ---------------------------------- #!/usr/bin/python import subprocess def getCallResult(cmdARGS): fd_popen = subprocess.Popen(cmdARGS.split(), stdout=subprocess.PIPE).stdout data = fd_popen.read().strip() fd_popen.close() return data data = getCallResult("ls -la") print (data) ---------------------------------- 2. Result Example ---------------------------------- # python test.py total 524 drwxrwxr-x 4 parkmo parkmo 4096 1월 27 16:30 . drwxrwxr-x 45 parkmo parkmo 4096 1월 27 11:59 .. drw-rw-r-- 1 parkmo parkmo 421 1월 27 12:01 test.py .. .. 1) If you don't want use split() when call subprocess.Popen, use [ ]. subprocess.Popen(["ls", "-la"], stdout=subprocess.PIPE).stdout 2) If you can want to file descriptor. fd_popen = subprocess.Popen(cmdARGS.split(), stdout=subprocess.PIPE).wait() You can use Blocking or Non-Blocking. Test Environment: Pytho