Where is $path Ubuntu?

Ubuntu Linux, as well as all other Linux distributions, uses the PATH variable to tell the operating system where to look for executable commands. Typically these commands are located in the /usr/sbin, usr/bin and /sbin, and /bin directories.

Where is $path stored in Linux?

The variable values are usually stored in either a list of assignments or a shell script that is run at the start of the system or user session. In case of the shell script you must use a specific shell syntax.