模块subprocess

>>> import subprocess
>>> subprocess.run("ifconfig")

>>> subprocess.call("df -h",shell=True)

>>> a = subprocess.Popen("df -h",shell=True,stdout=subprocess.PIPE)
>>> a.stdout.read()
'Filesystem            Size  Used Avail Use% Mounted on\n/dev/mapper/vg0-root  270G  189G   67G  74% /\ntmpfs                 7.8G   20K  7.8G   1% /dev/shm\n/dev/sda1             194M   27M  157M  15% /boot\n'