df(1)
NAME
df − display free and used disk space
SYNTAX
df [ −i ] [ filesystem... ] [ file... ]
DESCRIPTION
The df command displays the amount of disk space available on the specified filesystem, for example, /dev/ra0a. It will also display the amount of available disk space on the file system in which the specified file is contained, $HOME for example. If a device is given that has no file systems mounted on it, df displays the information for the root file system. Without any arguments or options, df displays both the used disk space and the free disk space on all of the file systems that have been mounted using the fstab file. The numbers are reported in kilobytes.
EXAMPLES
Filesystem total kbytes kbytes percent
node kbytes used free used Mounted on
/dev/ra1a 7429 2085 4602 31% /tmp
/dev/ra0e 30519 14817 12651 54% /usr/spool
/dev/ra0h 313233 122858 159052 44% /usr/staff1
The total disk space is the total space that was created during the making of the file system. The addition of the used space, the free space and a percentage of reserved space is the total space. The default value for the reserved space is 10%.
OPTIONS
−i In addition to disk information, report the number of free inodes and the number of used inodes.
RESTRICTIONS
You can no longer use the df command to find free space on an unmounted file system using the block or character special device name. Instead, use the dumpfs(8) command.
FILES
/etc/fstablist of mounted filesystems