If you dont know what a manpage is. Specifies tracking command paths. Exports aliases for use by scripts.
Higher letters are nicer.
Use to show queues of scheduled jobs. Displays completed but not deleted jobs or scheduled time for unexecution jobs. Makes the shell interactive, as opposed to non-interactive as in a shell script. Specifies that additional options, beyond those given, should be read from stand- ard input. Specifies posix compliance which helps make anything more portable from system to system. batch Use to schedule jobs for low system loads.