To set or change the $PATH variable on macOS, you can use the export command in a terminal window. The $PATH variable is a system-wide environment variable that specifies the directories that the system will search for executables when you run a command in the terminal. By modifying the $PATH variable, you can add or remove directories from the search path, which can make it easier to run executables that are not in the default search path.
To set the $PATH variable, you can use the export command in the following format:
export PATH=$PATH:/path/to/directory
This will add the /path/to/directory directory to the existing $PATH variable. You can specify multiple directories by separating them with a colon (:). For example, to add the /usr/local/bin and /usr/local/sbin directories to the $PATH variable, you can use the following command:
export PATH=$PATH:/usr/local/bin:/usr/local/sbin
To make the changes to the $PATH variable persistent across terminal sessions, you can add the export command to your shell's configuration file. The location and name of the configuration file depends on the shell that you are using. For example, if you are using the Bash shell, you can add the export command