命令
pwck
描述
verify integrity of password files
验证用户文件/etc/passwd和/etc/shadow
用法
选项
-s 按照UID重新排序用户文件
注意
如果之前指定了较大的uid,那后续新增用户会以最大的uid为准,依次加1,即使上一次指定了较小的uid,即和/etc/passwd中的uid排序无关
示例
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| $ tail -3 /etc/passwd usera:x:1002:1002::/home/usera:/bin/bash userb:x:1010:1023::/home/userb:/bin/bash userc:x:1011:1011::/home/userc:/bin/bash $ usermod -u 1003 userc $ tail -3 /etc/passwd usera:x:1002:1002::/home/usera:/bin/bash userb:x:1010:1023::/home/userb:/bin/bash userc:x:1003:1011::/home/userc:/bin/bash $ pwck -s $ tail -3 /etc/passwd usera:x:1002:1002::/home/usera:/bin/bash userc:x:1003:1011::/home/userc:/bin/bash userb:x:1010:1023::/home/userb:/bin/bash $ useradd -u 1004 userd $ tail -4 /etc/passwd usera:x:1002:1002::/home/usera:/bin/bash userc:x:1003:1011::/home/userc:/bin/bash userb:x:1010:1023::/home/userb:/bin/bash userd:x:1004:1024::/home/userd:/bin/bash
$ useradd user1 $ tail -5 /etc/passwd usera:x:1002:1002::/home/usera:/bin/bash userc:x:1003:1011::/home/userc:/bin/bash userb:x:1010:1023::/home/userb:/bin/bash userd:x:1004:1024::/home/userd:/bin/bash user1:x:1011:1025::/home/user1:/bin/bash
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