Arrange the dirty environment variable PATH

Check current PATH

** Format the PATH and make a note of it as it will be used when resetting. ** **

$ echo $PATH
 /home/yourname/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:

Clear PATH

unset PATH

Pass through the new PATH

$ export PATH=$PATH:/usr/local/bin/:/usr/bin/

Persistence

If you just execute it in a terminal, it will be valid only in the terminal where you executed it, so describe it in ~ / .bashrc etc.

~/.bashrc

export PATH=$PATH:/usr/local/bin/:/usr/bin/

update

source ~/.bashrc