Linux Common Commands 5

Network commands

1.

Instruction Name: Write

Instruction path:/usr/bin/write

Execute Permissions: All Users

Syntax:Write < user name >

Function Description: Send message to User to ctrl+d Save End

2.

Directive Name: Wall

Command English original:write all

Instruction path:/usr/bin/wall

Execute Permissions: All Users

Syntax:write [message]

Function Description: Send broadcast message

You can see that all users are sent a broadcast, even their own.

3.

Instruction Name: Ping

Instruction path:/bin/ping

Execute Permissions: All Users

Syntax:ping option IP address

-C Specify number of times to send

Function Description: Test network connectivity

If you do not add-c [Specify the number of sends] it will ping all the time.

4.

Directive Name: Ifconfig

Command English original meaning:interface Configure

Instruction path:/sbin/ifconfig

Execute permissions:root

Syntax:ifconfig nic name IP address

Function Description: View and set network card information

Example:ifconfig ech0 192.168.8.250

5.

Directive Name: Mail

Instruction path:/bin/mail

Execute Permissions: All Users

Syntax:mail [ user name ]

Function Description: View send e-mail

& Serial number View message content

&h Return to Mailing list

&d Serial Number Delete message

&q exit

Linux Common Commands 5