Run BASH built-in commands in Python?
Is there a way to run the BASH built-in commands from Python?
I tried:
subprocess.Popen(['bash','history'],shell=True, stdout=PIPE)
subprocess.Popen('history', shell=True, executable = "/bin/bash", stdout=subprocess.PIPE)
os.system('history')
and many variations thereof. I would like to run history
or fc -ln
.
I finally found a solution that works.
from subprocess import Popen, PIPE, STDOUT
shell_command = 'bash -i -c "history -r; history"'
event = Popen(shell_command, shell=True, stdin=PIPE, stdout=PIPE,
stderr=STDOUT)
output = event.communicate()
Thank you everyone for the input.
subprocess.Popen(["bash", "-c", "type type"])
this calls bash and tells bash to run the string type type
, which runs the builtin command type
on the argument type
.
output: type is a shell builtin
the part after -c
has to be one string. this will not work: ["bash", "-c", "type", "type"]