Run $(Linux commnad) in a Python subprocess.run?

March 2, 2023

I run:

proc = subprocess.run(["echo", "$(echo 1111dGUv+rG551123eFwBhCMde6BIS90c3AAAAA= | base64 -d)"], check=True, stdout=subprocess.PIPE)
print(proc.stdout)

Got:

b'$(echo 1111dGUv+rG551123eFwBhCMde6BIS90c3AAAAA= | base64 -d)\n'

But wish to have $(echo 1111dGUv+rG551123eFwBhCMde6BIS90c3AAAAA= | base64 -d) executed and then passed to echo within a subprocess.run. So the result could be:

�]ute/����]v��p�u�!/tsp

How could this be achieved in subprocess.run() ?

>Solution :

Pass the shell=True argument to the subprocess.run() function, like this:


proc = subprocess.run('echo "$(echo 1111dGUv+rG551123eFwBhCMde6BIS90c3AAAAA= | base64 -d)"', 
                      shell=True, 
                      check=True, 
                      stdout=subprocess.PIPE)
print(proc.stdout)