linux user administration commands

Common Linux System administration commandsWhoAmI shows the user of the current operation, such as:650) this.width=650; "src=" Http://p3.pstatp.com/large/19210001778d80f7b8c8 "alt=" Linux Learning ~linux System Administration Command "style=" border:

4 System Administration commands Shutdown       graceful shutdown &NBSP Reboot             Restart computer PS             &NBSP ;     Show transient process status, view current program execution  ps-aux

(1) Su and sudoSU: Can be switched between users through Su, what is power if superuser root switches to normal or virtual users without a password? That's it! And the normal user to switch to any other users need password authentication;Sudo:Sudo's

top-c #任务管理器free-m #查看内存使用情况kill-9 2312 (description: Forced kill process kill-9 PID)df-h #查看磁盘使用情况 First, top1. RoleThe top command is used to display the program process in progress, and the permissions are all users.2. Format

System and Management commandsUsers and Groups class commandsUsersDegree of importance: MediumDisplays all logged-on users. This command is basically consistent with the who-q.GroupsDegree of importance: MediumLists the current user and the group to

Some basic commands for system administration commandsAPMD Advanced Power Management (APMD command is responsible for BIOS Advanced Power Management (APM) related records, warnings, and administrative work)APMD "Options" "percent change" "percent

DF detects disk space usage and availability of file systems -- used to detect disk space usage and availability of file systems, and can show the usage of all file system docking points and disk blocks --DF [parameters]-- Common parameters and

Linux File System administration commandsCommon Commands1. DF command to view the usage of the partitionCommon options-H More Humane-m displays partition usage in megabytesDisplay information:Mounted on: Mount pointFilesystem: The specific hardware

Linux is a multi-user multi-tasking time-sharing operating system, all of which use system resourcesof usersMust first request an account from the system administrator, and then enter the system as the ID of the account. The user's account can help

Linux is a multi-userTick Operations for tasksSystem, all one to use system resourcesof usersThe system administrator must firstApply for an account, and then enter the system as the account ID. The user's account can help the system administrator