Help commands
Help-command
Man-Get help information
User Management commands
Useradd-Add a new user
passwd-Set User password
Who-Show all users
W-View more detailed user information
Userdel [-r] [user name]-delete user
-r parameter, which means deleting users and user directories
=============================================================================================================== ==============
Two types of Help:
1 Help for commands
5 configuration file Help
Whatis only read the information of name
Info is the same as man
Apropos Services View Description
LS--help viewing options
--------------------------------------------------------------------------------------------------------------- -----------------------------------------------------------------
Useradd simply add a user name
Who command shows all users
TTY indicates local terminal
PTS indicates a remote terminal
uptime-time of continuous operation
13:39:46 up min, 2 users, Load average:0.00, 0.00, 0.00
How long to run continuously log on 2 user Server load Index
Delete User Userdel [-r] [user name]
-r parameter, which means deleting users and user directories
Linux Learning Note 2-command Summary 4