| alias | Shell command that prints a list of aliases to standard output. |
| history | Shell command that displays the history event list. |
| man | |
| Displays information about commands, subroutines, and files online. | |
| Web-based System Manager | |
| Performs system management from a web browser. | |
| whatis | |
| Describes the function a command performs. | |
| whereis | |
| Locates the source, binary, or manual for installed programs. | |
| at | |
| Runs commands at a later time, lists all scheduled processes, or removes a process from the schedule. | |
| atq | |
| Displays the queue of jobs waiting to be run. | |
| kill | |
| Sends a signal to running processes. | |
| nice | |
| Runs a command at a lower or higher priority. | |
| ps | |
| Shows current status of processes. | |
| renice | |
| Alters priority of running processes. | |