December 2000
Intermediate to advanced
800 pages
22h 41m
English
Content preview from Special Edition Using Linux®, Sixth Edition
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System Utilities
| Command | Syntax (Example) | Description |
|---|---|---|
| chage | chage [option] user | Changes password aging. |
| chgrp | chgrp <group> <file> | Changes the group to which a file belongs. |
| chmod | chmod <mode> <file> | Changes the access permissions of the specified file or files. |
| chown | chown <owner> < file> | Changes the owner of a given file or files. |
| coastool | coastool | Uses COAS to manage the system. |
| date | date | Displays the system date setting. |
| date <MMDDhhmmyy> | Sets the date. | |
| MM = month | ||
| DD = day | ||
| hh = hour (Military) | ||
| mm = minute | ||
| yy = year | ||
| df | df | Displays a summary of free disk space for a given filesystem. |
| dmesg | dmesg | Displays the startup messages from the last system boot. |
| du | du | Displays disk usage for the current directory and all subdirectories. |
| echo | echo | Displays a line of text. |
| echo |
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