NAME

df − report number of free disk blocks

SYNOPSIS

df [ −f ] [ −i ] [ file-systems ]

DESCRIPTION

df reports the number of free disk blocks (1 disk block equals 1 kbyte) available for on-line file systems.  The file-systems argument may be specified either by a device name (e.g., /dev/md0c) or by a mounted directory name (e.g., /usr). If the file-systems argument is unspecified, df reports on all file systems listed in the file /etc/fstab.

Normally, the free block information is gleaned from the file system’s superblock.  The −f flag forces a scan of the free block list. 

The −i flag reports the number and percentage of free inodes. 

FILES

/etc/fstab /etc/mntent

SEE ALSO

statfs(2), fs(4), mntent(4). 

BUGS

Free counts may be incorrect, with or without the −f flag. 
 

Version 2.5  —  April 22, 1987