df_hfs.1m (2010 09)

df_hfs(1M) df_hfs(1M)

EXAMPLES

Report the number of free disk blocks for all mounted ﬁle systems:

Report the number of free disk blocks for all mounted HFS ﬁle systems:

df -F hfs

Report the number of free ﬁles for all mounted NFS ﬁle systems:

df -F nfs -e

Report the total allocated block ﬁgures and the number of free blocks, for all mounted ﬁle systems:

df -t

Report the total allocated block ﬁgures and the number of free blocks, for the ﬁle system mounted as /usr:

df -t /usr

WARNINGS

df does not account for:

• Disk space reserved for swap space,

• Space used for the HFS boot block (8K bytes, 1 per ﬁle system),

• HFS superblocks (8K bytes each, 1 per disk cylinder),

• HFS cylinder group blocks (1K-8K bytes each, 1 per cylinder group),

• Inodes (currently 128 bytes reserved for each inode).

Non-HFS ﬁle systems may have other items that this command does not account for.

The

-b option, from prior releases, has been replaced by the -B option.

FILES

/dev/dsk/* File system devices.

/etc/fstab Static information about the ﬁle systems

/etc/mnttab Mounted ﬁle system table