-k ##keep-tokens keep non-expired authentication tokens注:保留即将过期的用户在期满后能仍能使用;-d ##delete delete the password for the named account (root only)注:删除用户密码,仅能以root权限操作;-l ##lock lock the named account (root only)注:锁住用户无权更改其密码,仅能通过root权限操作;-u ##unlock unlock the named account (root only)注:解除锁定;-f ##force force operation注:强制操作;仅root权限才能操作;-x ##maximum=DAYS maximum password lifetime (root only)注:两次密码修正的最大天数,后面接数字;仅能root权限操作;-n ##minimum=DAYS minimum password lifetime (root only)注:两次密码修改的最小天数,后面接数字,仅能root权限操作;-w ##warning=DAYS注:在距多少天提醒用户修改密码;仅能root权限操作;-i ##inactive=DAYS注:在密码过期后多少天,用户被禁掉,仅能以root操作;-S ##status report password status on the named account (root only)注:查询用户的密码状态,仅能root用户操作;
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