Running bash script from within python

Running bash script from within python

Making executable and adding shell=True to the parameter list (as suggested in previous answers) works ok. Depending on the search path, you may also need to add ./ or some other appropriate path. (Ie, change to ./

The shell=True parameter is not needed (under a Posix system like Linux) if the first line of the bash script is a path to a shell; for example, #!/bin/bash.

If has the shebang #!/bin/sh and it has appropriate file permissions — run chmod u+rx to make sure and it is in $PATH then your code should work as is:

import subprocess

rc =

If the script is not in the PATH then specify the full path to it e.g., if it is in the current working directory:

from subprocess import call

rc = call(./

If the script has no shebang then you need to specify shell=True:

rc = call(./, shell=True)

If the script has no executable permissions and you cant change it e.g., by running os.chmod(, 0o755) then you could read the script as a text file and pass the string to subprocess module instead:

with open(, rb) as file:
    script =
rc = call(script, shell=True)

Running bash script from within python

Actually, you just have to add the shell=True argument:, shell=True)

But beware –

Warning Invoking the system shell with shell=True can be a security hazard if combined with untrusted input. See the warning under Frequently Used Arguments for details.


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