The df command reports the system's
disk space usage. If you type the command df at a shell prompt, the output looks similar to
the following:
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
11675568 6272120 4810348 57% /
/dev/sda1 100691 9281 86211 10% /boot
none 322856 0 322856 0% /dev/shm
|
By default, this utility shows the partition size in 1 kilobyte
blocks and the amount of used and available disk space in
kilobytes. To view the information in megabytes and gigabytes, use
the command df -h. The -h argument stands for human-readable format. The
output looks similar to the following:
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
12G 6.0G 4.6G 57% /
/dev/sda1 99M 9.1M 85M 10% /boot
none 316M 0 316M 0% /dev/shm
|
In the list of mounted partitions, there is an entry for
/dev/shm. This entry represents the
system's virtual memory file system.
The du command displays the estimated
amount of space being used by files in a directory. If you type
du at a shell prompt, the disk usage for
each of the subdirectories is displayed in a list. The grand total
for the current directory and subdirectories are also shown as the
last line in the list. If you do not want to see the totals for all
the subdirectories, use the command du -hs
to see only the grand total for the directory in human-readable
format. Use the du --help command to see
more options.
To view the system's partitions and disk space usage in a
graphical format, use the GNOME System
Monitor tab as shown in Figure 40-2,
on the bottom of the tab under Devices.
