Causes a function or sourced script to exit with the return value
specified by N. If N is omitted, the return status is that of the
last command executed within the function or script.
Exit Status:
Returns N, or failure if the shell is not executing a function or script.
tamalsaha
commented
4 years ago
https://stackoverflow.com/questions/18042279/how-to-exit-a-function-in-bash
return [n] From help return
return: return [n]
Return from a shell function.
Causes a function or sourced script to exit with the return value specified by N. If N is omitted, the return status is that of the last command executed within the function or script.
Exit Status: Returns N, or failure if the shell is not executing a function or script.