Solution to ifconfig :command not found command not found in Linux

When using Linux, after entering the ifconfig command, the reason why the command cannot be found and the solution are as follows:

1. The ifconfig tool is not installed (the preferred method):

>>You can use the following command to check

which ifconfig

 If the return result is empty, or if no ifconfig in (/xx path) is prompted, it means that the tool is not installed.

 >>Use the following command to upgrade and install

sudo apt-get install net-tools

 Tip: If apt-get cannot find the command, use yum instead (because some operating systems come with the yum tool.

yum -y install net-tools

2. PATH environment variable configuration problem

If the found ifconfig path is included in PATH, it means there is no problem.

>> If you have any problems, you can modify the configuration file /etc/bashrc or /etc/profile (administrator rights are required, and the modification will be permanent for all users). The modification command is as follows:

vi /etc/bashrc
或者
vi /etc/profile

>> Enter i after pressing Enter, add export PATH=$PATH:/sbin at the end, save and exit, and then execute the source /etc/bashrc or source /etc/profile command to take effect and complete the configuration.

The solutions provided in this article are for reference, depending on the situation. Suggestions for addition and improvement are welcome.