Red Hat Training

A Red Hat training course is available for Red Hat Enterprise Linux

24.4.5. Using the du Command

The du command allows you to displays the amount of space that is being used by files in a directory. To display the disk usage for each of the subdirectories in the current working directory, run the command with no additional command-line options:
For example:
~]$ du
14972   ./Downloads
4       ./.gnome2
4       ./.mozilla/extensions
4       ./.mozilla/plugins
12      ./.mozilla
15004   .
By default, the du command displays the disk usage in kilobytes. To view the information in megabytes and gigabytes, supply the -h command-line option, which causes the utility to display the values in a human-readable format:
du -h
For instance:
~]$ du -h
15M     ./Downloads
4.0K    ./.gnome2
4.0K    ./.mozilla/extensions
4.0K    ./.mozilla/plugins
12K     ./.mozilla
15M     .
At the end of the list, the du command always shows the grand total for the current directory. To display only this information, supply the -s command-line option:
du -sh
For example:
~]$ du -sh
15M     .
For a complete list of available command-line options, see the du(1) manual page.