Where is path edit in Linux?

The first way of setting your $PATH permanently is to modify the $PATH variable in your Bash profile file, located at /home/<user>/. bash_profile. A good way to edit the file is to use nano , vi , vim or emacs .

Where is $path stored Linux?

The Global environment variables of your system are stored in /etc/environment . Any changes here will get reflected throughout the system and will affect all users of the system. Also, you need a Reboot, for any changes made here to take effect.