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Introduction to user management commands in Linux

Source: Internet
Author: User
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Article Title: Introduction to user management commands in Linux. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems, open source, and other basic classification id username Display User id, user group id and other user group id

Who displays users logging on to the system

WWho's enhanced command displays the users logging on to the system, what they are doing, and how their processors are used. It is a common security command.

Finger username: displays the user's system information

Last display of users who recently logged on to the system, often used as a means of system security detection

Lastb shows recent unsuccessful login attempts

Free display of system memory information

More/proc/filesystems displays information about the file system currently in use

Setup uses the root user to configure the mouse, sound card, keyboard, system service, etc.

Date-s 2008-2-24

Date-s 16: 14

Or date022416142008 to set the current time

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Related Keywords:
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