istat
PURPOSE
Examines i-nodes.
SYNOPSIS
istat [ filename ]
istat [ inumber device ]
DESCRIPTION
The istat command writes information about the i-nodes
specified with inumber to standard output. Use the istat
command to write information about the i-node for a spec-
ified filename, or to write the contents of a specified
i-node, inumber on an arbitrary file system.
If you specify filename, istat writes the following
information about the file:
o The device where the file resides.
o The i-node number of the file, on that device.
o The file type (normal, directory, block device, and
so on).
o What protection is on the file.
o The name and identification number of the owner and
group.
Note: The owner and group names for remote files are
taken from the local /etc/passwd file.
o The number of links to the file.
o If the i-node is for a normal file, the length of the
file.
o If i-node is for a device, the major and minor device
designations.
o The date of the last time the i-node was updated.
o The date of the last time the file was modified.
o The date of the last time the file was referenced.
If you specify inumber and device, istat also displays,
in long decimal values, the block numbers recorded in the
i-node. You can specify the device as either a device
name or as a mounted-file-system name.
Note: inumber and device cannot specify a remote device.
EXAMPLES
1. To display the information stored in a file i-node:
istat /bin/sh
This displays the i-node information for the file
"/bin/sh". The information looks something like
this:
Inode 34 on device 0/10 File
Protection: rwxr-xr-x Sticky
Owner: 0(su) Group: 0(system)
Link count: 1 Length 54240 bytes
Last updated: Tue Dec 18 01:07:36 1984
Last modified: Sat Jun 30 18:11:47 1984
Last accessed: Wed Feb 13 11:06:37 1985
2. To display i-node information if given a file
i-number:
istat 34 /dev/hd0
This displays the information contained in i-node
number "34" on the "/dev/hd0" device. In addition to
the information shown in Example 1, this displays:
Block pointers:
219 220 221 222 223 224 225 226
227 228 229 0 0
These numbers are addresses of the disk blocks that
contain the data in the file.
RELATED INFORMATION
The following command: "fsdb."
The stat system call and the filesystems and fs files in
AIX Operating System Technical Reference.