NAME

df − report number of free disk blocks

SYNOPSIS

df [ −f ] [ −i ] [ file-systems ]

DESCRIPTION

Df reports the number of free blocks available for on-line file systems.  File-systems may be specified either by device name (e.g., /dev/md0c) or by mounted directory name (e.g., /usr).  If the file-systems argument is unspecified, df reports on all file systems listed in the file /etc/checklist. 

Normally, 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/checklist
/etc/mnttab

SEE ALSO

ustat(2), fs(4), mnttab(4). 

BUGS

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

Version 2.3  —  July 04, 1985