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SUSE LINUX Documentation - Index of

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114 Start-Up<br />

du [options] [path]<br />

This command, when executed without any parameters, shows the total disk space<br />

occupied by files and subdirectories in the current directory.<br />

-a<br />

-h<br />

-s<br />

Displays the size <strong>of</strong> each individual file<br />

Output in human-readable form<br />

Displays only the calculated total size<br />

free [options]<br />

The command free displays information about RAM and swap space usage,<br />

showing the total and the used amount in both categories. See Section “The free<br />

Command” (Chapter 10, Special Features <strong>of</strong> <strong>SUSE</strong> Linux, ↑Reference) for more<br />

information.<br />

-b<br />

-k<br />

-m<br />

Output in bytes<br />

Output in kilobytes<br />

Output in megabytes<br />

date [options]<br />

This simple program displays the current system time. If run as root, it can also<br />

be used to change the system time. Details about the program are available in the<br />

date(1) man page.<br />

Processes<br />

top [options]<br />

top provides a quick overview <strong>of</strong> the currently running processes. Press H to<br />

access a page that briefly explains the main options for customizing the program.

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