Send the output of os.system () to a variable

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Send the output of os.system () to a variable

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#1 by (1 votes)

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I'm doing a program that uses a socket to send a string from the client to the server and that string is saved in a variable and the following happens:

cmd = sock.recv(1024).decode()
os.system(cmd)

The thing is that I want to send the output to the client, something like this:

output = os.system(cmd)
sock.send(output.encode())

It is not necessary to be with os.system () as long as you can put the output in a variable, thanks.

python python-3.x

asked by binario_newbie 26.07.2018 в 07:22

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score 1 · Accepted Answer

os.system() does not return any value, so if you want to get the response of the command you should use:

os.popen()

cmd = sock.recv(1024).decode()
output = os.popen(cmd).read()
sock.send(output.encode())

subprocess.Popen()

cmd = sock.recv(1024).decode()
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
(output, err) = proc.communicate()
sock.send(output.encode())

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