linux查询用户信息
- linux通过who命令查询用户信息，格式如下：
- 查看当前linux服务器有哪些用户正在连接：
- 查询当前控制台使用的用户
linux通过who命令查询用户信息，格式如下：
who [OPTION]... [ FILE | ARG1 ARG2 ]
-a, --all same as -b -d --login -p -r -t -T -u
-b, --boot time of last system boot
-d, --dead print dead processes
-H, --heading print line of column headings
-l, --login print system login processes
--lookup attempt to canonicalize hostnames via DNS
-m only hostname and user associated with stdin
-p, --process print active processes spawned by init
-q, --count all login names and number of users logged on
-r, --runlevel print current runlevel
-s, --short print only name, line, and time (default)
-t, --time print last system clock change
-T, -w, --mesg add user's message status as +, - or ?
-u, --users list users logged in
--message same as -T
--writable same as -T
--help display this help and exit
--version output version information and exit
查看当前linux服务器有哪些用户正在连接：
who
查询当前控制台使用的用户
id
