CHAPTER 4 System Resources & Printing
| Command/Syntax | What it will do |
|---|---|
| chsh (passwd -e/-s) username login_shell | change the user's login shell (often only by the superuser) |
| date [options] | report the current date and time |
| df [options] [resource] | report the summary of disk blocks and inodes free and in use |
| du [options] [directory or file] | report amount of disk space in use+ |
| hostname/uname | display or set (super-user only) the name of the current machine |
| kill [options] [-SIGNAL] [pid#] [%job] | send a signal to the process with the process id number (pid#) or job control number (%n). The default signal is to kill the process. |
| man [options] command | show the manual (man) page for a command |
| passwd [options] | set or change your password |
| ps [options] | show status of active processes |
| script file | saves everything that appears on the screen to file until exit is executed |
| stty [options] | set or display terminal control options |
| whereis [options] command | report the binary, source, and man page locations for the command named |
| which command | reports the path to the command or the shell alias in use |
| who or w | report who is logged in and what processes are running |