Linux common commands--ifup, Ifdown

Ifup system Startup Anomaly Diagnosis
Syntax format: ifup "option" ifup [options]
Note: There must be at least one space between each element in the Ifup command and in the following options
The Ifup command is used to activate the specified network interface. The Ifup command is actually a shell script, and the Ifup command reads the configuration file/etc/sysconfig/network and/etc/sysconfig/network-scripts/ifcfg-<configuration > Operate the network interface accordingly.
Case one:
Activating the network interface

ifdown  系统启动异常诊断

Syntax format: ifdown "option" Ifdown [options]
Note: There must be at least one space between each element in the Ifdown command and in the following options
The Ifdown command is used to disable the specified network interface. As with the Ifup command, the Ifdown command is actually a Shell script, ifup commands to read the configuration file/etc/sysconfig/network and/etc/sysconfig/network-scripts/ifcfg-< The configuration> operates on the network interface accordingly.

Linux common commands--ifup, Ifdown