df(1m) DG/UX 4.30 df(1m)
NAME
df - report number of free disk blocks and inodes
SYNOPSIS
/etc/df [ -befiklnt ] [ -F type ] [ file-system | special |
directory ] ...
DESCRIPTION
Df prints out the number of free blocks and free file
entries (inodes) available for online file systems. File-
system is the name of the mount-point directory of a file
system (e.g., /usr). Special is a special filename
referring to a device containing a file system (e.g.,
/dev/dsk/usr). If a directory is specified, the information
for the file system that contains that directory is
presented. If you omit these arguments, the free space on
all of the mounted file systems is printed.
Options are:
-b Report only the number of free kilobytes available
on the file system.
-e Report only the number of free file entries on the
file system.
-f Count only the blocks in the free list (free file
entries are not reported). With this option, df
can report on raw devices.
-i Report on inode use using a Berkeley-style format
which includes the count of used and free inodes
and the percent of inodes in use.
-k Report on free space using a Berkeley-style format
which includes total space, space in use, space
available for non-super-users, and the percent of
the non-super-user capacity currently in use. The
sizes are in kilobytes.
-l Report only on local file systems.
-n Report only the type of the file system.
-t Report also the total number of blocks and file
entries initially allocated to the file system.
The -t option can be used together with the -k or
-i options to report the totals for all requested
file systems.
-F type Report only on file systems of type type, where
type is one of dg/ux or nfs.
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df(1m) DG/UX 4.30 df(1m)
The sum of the space in use and the available space reported
by the -k option may be less than the total space because
some space (typically around 10%) is reserved for allocation
by the super-user. The capacity figure is based on the
space available for a non-super-user. Because it is
possible for the super-user to allocate space after the
non-super-user's space is full, it is possible for more than
100 percent of capacity to be reported, and it is possible
for free space to be negative.
The numbers of free blocks and free file nodes take into
account any applicable control point directory limits.
Inode information and control point directory limits are not
available for remote file systems. Unavailable information
is indicated by a question mark or a zero value.
EXAMPLES
/etc/df /usr
/etc/df /dev/dsk/usr
/etc/df /dev/rdsk/usr
The first example specifies a mounted directory name.
The second and third examples specify device names in the
DG/UX System.
FILES
/dev/dsk/*
SEE ALSO
cpd(1), fs(4), mnttab(4).
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