Solution:
1. Enter the etc directory and modify the profile file
2. At the end Add one line: export PS1='[\u@\h $PWD]\$'
3. After saving, execute: source /etc/profile
You can immediately see that the displayed path has changed and turned into a full path. Then every file directory you go to will display the full path. , which is much more convenient.
Recommended tutorial: linux tutorial
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