.\"	$OpenBSD: ncheck_ffs.8,v 1.25 2019/06/02 06:53:11 bentley Exp $
.\"
.\" Copyright (c) 1995, 1996 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd $Mdocdate: June 2 2019 $
.Dt NCHECK_FFS 8
.Os
.Sh NAME
.Nm ncheck_ffs ,
.Nm ncheck
.Nd generate names from inode-numbers
.Sh SYNOPSIS
.Nm ncheck_ffs
.Op Fl ams
.Op Fl f Ar format
.Op Fl i Ar number ...
.Ar filesystem
.Sh DESCRIPTION
.Nm
generates a list of filenames and inode numbers for the given
file system.
Names of directories are followed by a
.Sq \&. .
.Nm
may be invoked more simply as
.Nm ncheck ,
with no change in behaviour.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl a
Print the file names
.Sq \&.
and
.Sq .. ,
which are ordinarily skipped.
.It Fl f Ar format
Use a custom output format when printing inode information.
Characters from
.Ar format
are printed for each inode with the following escape sequences:
.Pp
.Bl -tag -width Ds -offset indent -compact
.It Cm \ea
Print a
.Aq bell
character.
.It Cm \eb
Print a
.Aq backspace
character.
.It Cm \ee
Print an
.Aq escape
character.
.It Cm \ef
Print a
.Aq form-feed
character.
.It Cm \eI
Print the inode number.
.It Cm \en
Print a
.Aq new-line
character.
.It Cm \eP
Print the pathname to the file using the current inode number.
.It Cm \er
Print a
.Aq carriage return
character.
.It Cm \et
Print a
.Aq tab
character.
.It Cm \ev
Print a
.Aq vertical tab
character.
.It Cm \e\(aq
Print a
.Aq single quote
character.
.It Cm \e\e
Print a backslash character.
.It Cm \e Ns Ar 0
Print a
.Tn NUL
character.
.El
.Pp
All other characters, when prefixed by a backslash, simply print
the character following the backslash.
The device name is not printed on the first line of output when the
.Fl f
option is specified.
.It Fl i Ar number ...
Report only those files whose inode numbers are as listed.
.It Fl m
Give more verbose information on inodes.
.It Fl s
Report only special files and files with set-user-ID or set-group-ID
set.
This is meant to find hidden violations of security policies.
.El
.Pp
The report is not sorted.
.Sh SEE ALSO
.Xr sort 1 ,
.Xr fsck 8 ,
.Xr fsdb 8
.Sh HISTORY
The
.Nm
command was designed to be similar in functionality to the corresponding
command in SunOS 4.1.3.
.Sh AUTHORS
.An Thorsten Lockert Aq Mt tholo@sigmasoft.com