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              usermod使用方法【每日一個知識點第202期-Linux】

              usermod命令用于修改用戶的基本信息。usermod命令不允許你改變正在線上的使用者帳號名稱。當usermod命令用來改變user?id,必須確認這名user沒在電腦上執行任何程序。你需手動更改使用者的crontab檔。也需手動更改使用者的at工作檔。采用NIS server須在server上更動相關的NIS設定。

              語法

              usermod(選項)(參數)

              選項

              -c<備注>:修改用戶帳號的備注文字;
              -d<登入目錄>:修改用戶登入時的目錄;
              -e<有效期限>:修改帳號的有效期限;
              -f<緩沖天數>:修改在密碼過期后多少天即關閉該帳號;
              -g<群組>:修改用戶所屬的群組;
              -G<群組>;修改用戶所屬的附加群組;
              -l<帳號名稱>:修改用戶帳號名稱;
              -L:鎖定用戶密碼,使密碼無效;
              -s<shell>:修改用戶登入后所使用的shell;
              -u<uid>:修改用戶ID;
              -U:解除密碼鎖定。

              參數

              登錄名:指定要修改信息的用戶登錄名。

              實例

              將newuser2添加到組staff中:

              usermod -G staff newuser2

              修改newuser的用戶名為newuser1:

              usermod -l newuser1 newuser

              鎖定賬號newuser1:

              usermod -L newuser1

              解除對newuser1的鎖定:

              usermod -U newuser1

              《Linux學習每日一個知識點》欄目是馬哥教育Linux云計算年薪20萬+的學員社群特別發起,分享Linux工具、Linux語法、Linux項目等知識點,幫助大家快速的了解Linux學習,快速步入Linux高薪的快車道。

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              郵件:work@magedu.com

              工作時間:周一至周日,09:00-18:30

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