What should I do if the command prompt on the Linux (Ubuntu) terminal is too long?

What should I do if the command prompt on the Linux (Ubuntu) terminal is too long?

What should I do if the command prompt on the Linux (Ubuntu) terminal is too long? Because the zhuang terminal (bi) is often used, each time it is opened, it is a drop of soy sauce:

 

Or after entering several levels of directories, it turns into soy sauce:

Really ×× ugly! And just enter a few commands to wrap the line! What should we do? It is very simple. There are two steps:

Step 1: Modify the computer name

In the above, between "@" and ":" is the host name, that is, the Chris-Laptop-Thinkpad-X240, for example, can be changed to X240

(1) Modify/etc/hostname