用戶功能
查閱更多的用戶相關信息命令：finger
語法： finger [-s] user_name
-s:僅列出用戶的賬號，全名，終端機代號與登陸時間
-m:列出後面接的賬號相同者，而不利用部分對比（包括全名部分）
例子：
[root@localhost ~]# finger xx Login: xx Name: Directory: /home/xx Shell: /bin/bash Never logged in. No mail. No Plan.
新建自己的計劃文檔：
[xx@localhost ~]$ echo "i will have anice day" >~/.plan [xx@localhost ~]$ finger xx Login: xx Name: Directory: /home/xx Shell: /bin/bash Never logged in. No mail. Plan: i will have a nice day
單獨使用finger命令時，列出目前登陸到系統的所有用戶和登陸時間
[xx@localhost ~]$ finger Login Name Tty Idle Login Time Office Office Phone whx centos6.9 tty1 1:00 Oct 9 18:18 (:0) whx centos6.9 pts/0 Oct 9 18:19 (192.168.21.1)
修改用戶相關信息命令chfn
語法：chfn [-foph] [user_name]
-f:後接完整的全名
-o:後接辦公室號碼
-p:後接辦公室電話號
-h:後接家庭電話號
例子：
[xx@localhost ~]$ chfn Changing finger information for xx. Password: Name []: xx for test Office []: guiyang Office Phone []: 11111 Home Phone []: 11111 Finger information changed. [xx@localhost ~]$ finger xx Login: xx Name: xx fortest Directory: /home/xx Shell: /bin/bash Office: guiyang, x1-1111 Home Phone: x1-1111 Never logged in. No mail. Plan: i will have a nice day [xx@localhost ~]$ grep xx /etc/passwd xx:x:501:501:xx fortest,guiyang,11111,11111:/home/xx:/bin/bash xxx:x:502:502::/home/xxx:/bin/bash
更改shell命令chsh
語法：chsh [-ls]
-s:設置修改自己的shell
-l：列出目前系統上可用的shell
[xx@localhost ~]$ chsh -l /bin/sh /bin/bash /sbin/nologin /bin/dash /bin/tcsh /bin/csh [xx@localhost ~]$ chsh -s /bin/csh Changing shell for xx. Password: Shell changed. [xx@localhost ~]$ grep xx /etc/passwd xx:x:501:501:xx fortest,guiyang,11111,11111:/home/xx:/bin/csh xxx:x:502:502::/home/xxx:/bin/bash [xx@localhost ~]$ chsh -s /bin/bash Changing shell for xx. Password: Shell changed. [xx@localhost ~]$ ll $(which chsh) -rws--x--x. 1 root root 20056 Mar 22 2017 /usr/bin/chsh [xx@localhost ~]$ id xx
查看用戶的uid，gid等信息命令id
語法：id [user_name]
不添加用戶名時，列出當前用戶的信息
例子：
[xx@localhost ~]$ id uid=501(xx) gid=501(xx)groups=501(xx),500(whx),503(testgrp) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 [xx@localhost ~]$ id whx uid=500(whx) gid=500(whx)groups=500(whx),501(xx),503(testgrp)