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其他
7z
usermod - Linux命令大全 - 笔下光年
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usermod
用于修改用户的基本信息 ## 补充说明 **usermod命令** 用于修改用户的基本信息。usermod 命令不允许你改变正在线上的使用者帐号名称。当 usermod 命令用来改变user id,必须确认这名user没在电脑上执行任何程序。你需手动更改使用者的 crontab 档。也需手动更改使用者的 at 工作档。采用 NIS server 须在server上更动相关的NIS设定。 ### 语法 ```shell usermod(选项)(参数) ``` ### 选项 ```shell -c<备注>:修改用户帐号的备注文字; -d<登入目录>:修改用户登入时的目录,只是修改/etc/passwd中用户的家目录配置信息,不会自动创建新的家目录,通常和-m一起使用; -m<移动用户家目录>:移动用户家目录到新的位置,不能单独使用,一般与-d一起使用。 -e<有效期限>:修改帐号的有效期限; -f<缓冲天数>:修改在密码过期后多少天即关闭该帐号; -g<群组>:修改用户所属的群组; -G<群组>;修改用户所属的附加群组; -l<帐号名称>:修改用户帐号名称; -L:锁定用户密码,使密码无效; -s<shell>:修改用户登入后所使用的shell; -u<uid>:修改用户ID; -U:解除密码锁定。 ``` ### 参数 登录名:指定要修改信息的用户登录名。 ### 实例 将 newuser2 添加到组 staff 中: ```shell usermod -G staff newuser2 ``` 修改newuser的用户名为newuser1: ```shell usermod -l newuser1 newuser ``` 锁定账号newuser1: ```shell usermod -L newuser1 ``` 解除对newuser1的锁定: ```shell usermod -U newuser1 ``` 增加用户到用户组中: ```shell apk add shadow # 安装 shadow 包, usermod 命令包含在 usermod 中 usermod -aG group user # 添加用户到用户组中 ``` `-a` 参数表示附加,只和 `-G` 参数一同使用,表示将用户增加到组中。 修改用户家目录: ``` [root@node-1 ~]# useradd lutixiaya [root@node-1 ~]# ls /home lutixiaya [root@node-1 ~]# usermod -md /data/new_home lutixiaya [root@node-1 ~]# ls /home/ [root@node-1 ~]# ls /data/ new_home ```
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