ncheck - Lists i-number or tag and pathname for files in a
local file system.
/usr/sbin/ncheck [-i numbers] [-asm] [device_special_file
Includes in the list the pathnames (dot) and (dot dot),
which are ordinarily suppressed. Lists only those existing
files with the specified i-numbers (UFS) or tags
(AdvFS). Includes in the list the mode, UID, and GID of
the files. To use this option you must also specify
either the -i or the -s option from the command line.
Lists only the special files and files with set-user-ID
Specifies one or more file systems. Specify a file system
by entering its device special file name or AdvFS domain
as shown in the /etc/fstab file as follows: Specify a UFS
file system by entering the name of its device special
file. For example: /dev/disk/dsk3c. You can also specify
the raw device, such as /dev/rdisk/dsk4a. You cannot
specify the UFS mount point, such as /usr or the following
message is displayed: ncheck: cannot open /usr: Device
busy Specify an AdvFS fileset by entering the name of the
file domain, a pound sign (#) character, and the name of
the fileset. For example: root_domain#root.
The ncheck command with no options generates a list of all
files on every specified file system. The list includes
the path name and the corresponding i-number or tag of
each file. Each directory file name in the list is followed
by a /. (slash dot). Use the available options to
customize the list to include or exclude specific types of
The files are listed in order by i-number or tag. To sort
the list in a more useful format, pipe the output to the
To uncover concealed violations of security policy, that
is, the inappropriate use of the set-user-ID mode, issue
the command with the -s option to list only special files
and files with set-user-ID mode.
You must be the root user to use this command.
The ncheck command checks the /etc/fstab file for the
specified domain and file system entry. If there is no
entry in /etc/fstab for the specified file system, an
error message is displayed to indicate that the file does
The ncheck command can be used only for checking local
file systems. The "nnn" string identifies the file system
type. Specify the AdvFS domain instead of the file system
path (such as /var).
When the file system structure is improper, ?? (question
mark question mark) denotes the parent of a parentless
file. A path name beginning with (dot dot dot) denotes a
The following example shows command options taking data
from a sample /etc/fstab file: # more /etc/fstab
/dev/disk/dsk4a / ufs rw 1 1 /proc /proc
procfs rw 0 0 usr_domain#usr /usr advfs rw 0 2
var_domain#var /var advfs rw 0 2 # /usr/sbin/ncheck
/usr cannot ncheck "advfs" filesystem # /usr/sbin/ncheck
usr_domain#usr: 3 /.tags/. 4 /quota.user 5
/quota.group . . . # /usr/sbin/ncheck /dev/disk/dsk4a
/dev/rdisk/dsk4a (/dev/disk/dsk4a): 3200 /cluster/.
12801 /etc/. . . . # /usr/sbin/ncheck / ncheck: cannot
open /: Device busy
Specifies the command path.
Commands: sort(1), quot(8)
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