The Terminal is an excellent tool to find out information about your Mac. With sufficient knowledge you can schedule tasks, manage user accounts and customize your computer in many different ways straight from the Terminal.
View information about your computer: hardware, software, network etc.
sw_vers system_profiler diskutil df uptime last reboot
Execute commands in the Terminal with extended permissions
Manage processes and PID’s running on your Mac directly from the Terminal
Schedule tasks to run on your Mac.
Customize your Mac
Change advanced settings on your computer.
Administrate user accounts, set permissions etc.