NAME

df − report number of free disk blocks

SYNOPSIS

df [ −t ] [ −f ] [ file-system ... ]

DESCRIPTION

Df prints out the number of free blocks and inodes available for online file systems by examining the counts stored in the super-blocks. 

File-systems may be specified either by device name (e.g., /dev/rp1) or mounted directory name (e.g., /usr).  If the ’file-systems’ argument is not specified, the free space on all the mounted file systems is reported. 

The reported numbers are in file system block units; currently, each file-system block is 1024 bytes long, which is twice the size of the blocks reported by du(1) or ls(1) with the −s option. 

Other options are as follows:

−i Report also the number of inodes which are used and free. 

−l
 Also examines the free list, double checking that the summary number in the file-system superblock is correct.

FILES

/etc/fstablist of normally mounted file-systems

SEE ALSO

fstab(5), icheck(8), quot(8)

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