一行代码更改密码

echo 'root:laogao' | chpasswd

# 此方法使用于需要输入两次密码的情况
(echo 'password'; echo 'password') | pure-pw useradd www -u www-data -d /home/ftpuser/www

#!/usr/local/bin/python

import pexpect

child = pexpect.spawn('pure-pw useradd www -u www-data -d /home/ftpuser/www');

child.expect('Password: ');
child.sendline('password');

child.expect('Enter it again: ');
child.sendline('password');

child.expect(pexpect.EOF);

print child.before;