userdel - 删除用户账户和相关文件
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userdel is a low level utility for removing users. On Debian, administrators should usually use deluser(8) instead.
The userdel command modifies the system account files, deleting all entries that refer to the user name LOGIN. The named user must exist.
The options which apply to the userdel command are:
Note: This option is dangerous and may leave your system in an inconsistent state.
The mail spool is defined by the MAIL_DIR variable in the login.defs file.
-R, --root CHROOT_DIR
-P, --prefix PREFIX_DIR
The following configuration variables in /etc/login.defs change the behavior of this tool:
The userdel command exits with the following values:
userdel will not allow you to remove an account if there are running processes which belong to this account. In that case, you may have to kill those processes or lock the user's password or account and remove the account later. The -f option can force the deletion of this account.
您不能在 NIS 客户端上移除任何 NIS 属性。这必须在 NIS 服务器上执行。
If USERGROUPS_ENAB is defined to yes in /etc/login.defs, userdel will delete the group with the same name as the user. To avoid inconsistencies in the passwd and group databases, userdel will check that this group is not used as a primary group for another user, and will just warn without deleting the group otherwise. The -f option can force the deletion of this group.