Check the disk usage statistics of mounted partitions or drives using df command

So, yesterday I told you about finding out the size of files or directories using du. This method could take a huge time when you are dealing with a whole filesytem e.g. a partition, external drive etc. To find out the disk usage stats of a file system, there is a specialized tool - a command line utility called df.

Just like du, using "-h" will yield readable stats. Please note that it only shows the output for mounted disks and partitions, not the whole disk.

[shredder12]$ df -h

Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2              14G  5.4G  7.8G  41% /
none                  493M  276K  493M   1% /dev
none                  501M  6.1M  495M   2% /dev/shm
none                  501M  256K  500M   1% /var/run
none                  501M     0  501M   0% /var/lock
/dev/sda5              95G   66G   25G  73% /home
/dev/sda4              29G   18G   11G  63% /media/sda4

One can also find about inode utilization stats of a filesystem using df.

[shredder12]$ df -i

/dev/sda2             917504  353597  563907   39% /
none                  212507     833  211674    1% /dev
none                  216609      32  216577    1% /dev/shm
none                  216609      88  216521    1% /var/run
none                  216609       4  216605    1% /var/lock
/dev/sda5            6291456  102799 6188657    2% /home