usermod -s /bin/false oscar
取消锁定
usermod -s /bin/bash oscar
锁定用户账户
passwd -l | --lock username
解锁用户账户
passwd -u | --unlock username
usermod -s /bin/false oscar
取消锁定
usermod -s /bin/bash oscar
锁定用户账户
passwd -l | --lock username
解锁用户账户
passwd -u | --unlock username