ErrorCode

Program completed correctly

Catchall for general errors (misc errors, such as x / 0)

Operation not permitted (missing keyword/command or permission problem)

Command invoked cannot execute (permission problem or command is not executable)

Command not found (possible problem with $PATH or typo)

Invalid argument to exit (see ErrorCode.nocode)

Fatal error (further execution is not possible or might harm the OS)

Terminated with Ctrl-C

Exit status out of range (maximal exit code)