File Systems - Red Hat ENTERPRISE LINUX 3 System Administration Manual

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Figure 42-2. GNOME System Monitor

42.3. File Systems

The command reports the system's disk space usage. If you type the command
df
the output looks similar to the following:
Filesystem
/dev/hda2
/dev/hda1
/dev/hda3
none
By default, this utility shows the partition size in 1 kilobyte blocks and the amount of used and avail-
able disk space in kilobytes. To view the information in megabytes and gigabytes, use the command
. The argument stands for human-readable format. The output looks similar to the following:
df -h -h
Filesystem
/dev/hda2
/dev/hda1
/dev/hda3
none
In the list of partitions, there is an entry for
memory file system.
The command displays the estimated amount of space being used by files in a directory. If you
du
type at a shell prompt, the disk usage for each of the subdirectories will be displayed in a list. The
du
grand total for the current directory and subdirectories will also be shown as the last line in the list. If
you do not want to see the totals for all the subdirectories, use the command
grand total for the directory in human-readable format. Use the
options.
1k-blocks Used Available Use% Mounted on
10325716 2902060
15554 8656
20722644 2664256
256796
Size Used Avail Use% Mounted on
9.8G 2.8G 6.5G
15M 8.5M 5.9M
20G 2.6G 16G
251M 0 250M
/dev/shm
Chapter 42. Gathering System Information
6899140 30% /
6095 59% /boot
17005732 14% /home
0 256796 0% /dev/shm
30% /
59% /boot
14% /home
0% /dev/shm
. This entry represents the system's virtual
du --help
at a shell prompt,
df
to see only the
du -hs
command to see more