tracert: command not found
The first time I used the tracert command, I was prompted that the command was not found, and I could replace it with traceroute
Reason: The tracert command is used by the windows system, and the traceroute command is used by the linux system
sudo apt-get: command not found
Install the packet capture software wireshark, enter the sudo apt-get install wireshark command and prompt that the command cannot be found
Replace apt-get with yum.
Reason: The CentOS software installation tool is not apt-get, but yum, use the yum command instead of apt-get.