003 File Manager
Current Path:
/usr/src/sbin/fsdb
usr
/
src
/
sbin
/
fsdb
/
📁
..
📄
Makefile
(493 B)
📄
Makefile.depend
(326 B)
📄
fsdb.8
(6.64 KB)
📄
fsdb.c
(28.91 KB)
📄
fsdb.h
(2.49 KB)
📄
fsdbutil.c
(6.39 KB)
Editing: fsdb.8
.\" $NetBSD: fsdb.8,v 1.2 1995/10/08 23:18:08 thorpej Exp $ .\" .\" Copyright (c) 1995 John T. Kohl .\" 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. .\" 3. The name of the author may not be used to endorse or promote products .\" derived from this software without specific prior written permission. .\" .\" 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. .\" .\" $FreeBSD$ .\" .Dd October 3, 2016 .Dt FSDB 8 .Os .Sh NAME .Nm fsdb .Nd FFS debugging/editing tool .Sh SYNOPSIS .Nm .Op Fl d .Op Fl f .Op Fl r .Ar fsname .Sh DESCRIPTION The .Nm utility opens .Ar fsname (usually a raw disk partition) and runs a command loop allowing manipulation of the file system's inode data. You are prompted to enter a command with .Ic "fsdb (inum X)>" where .Va X is the currently selected i-number. The initial selected inode is the root of the file system (i-number 2). The command processor uses the .Xr editline 3 library, so you can use command line editing to reduce typing if desired. When you exit the command loop, the file system superblock is marked dirty and any buffered blocks are written to the file system. .Pp The following options are available: .Bl -tag -width indent .It Fl d Enable additional debugging output (which comes primarily from .Xr fsck 8 Ns -derived code). .It Fl f Left for historical reasons and has no meaning. .It Fl r Open the file system read/only, and disables all commands that would write to it. .El .Sh COMMANDS Besides the built-in .Xr editline 3 commands, .Nm supports these commands: .Pp .Bl -tag -width indent -compact .It Cm help Print out the list of accepted commands. .Pp .It Cm inode Ar i-number Select inode .Ar i-number as the new current inode. .Pp .It Cm back Revert to the previously current inode. .Pp .It Cm clri Ar i-number Clear .Ar i-number . .Pp .It Cm lookup Ar name .It Cm cd Ar name Find .Ar name in the current directory and make its inode the current inode. .Ar Name may be a multi-component name or may begin with slash to indicate that the root inode should be used to start the lookup. If some component along the pathname is not found, the last valid directory encountered is left as the active inode. This command is valid only if the starting inode is a directory. .Pp .It Cm active .It Cm print Print out the active inode. .Pp .It Cm blocks Print out the block list of the active inode. Note that the printout can become long for large files, since all indirect block pointers will also be printed. .Pp .It Cm findblk Ar disk_block_number ... Find the inode(s) owning the specified disk block(s) number(s). Note that these are not absolute disk blocks numbers, but offsets from the start of the partition. .Pp .It Cm uplink Increment the active inode's link count. .Pp .It Cm downlink Decrement the active inode's link count. .Pp .It Cm linkcount Ar number Set the active inode's link count to .Ar number . .Pp .It Cm ls List the current inode's directory entries. This command is valid only if the current inode is a directory. .Pp .It Cm rm Ar name .It Cm del Ar name Remove the entry .Ar name from the current directory inode. This command is valid only if the current inode is a directory. .Pp .It Cm ln Ar ino Ar name Create a link to inode .Ar ino under the name .Ar name in the current directory inode. This command is valid only if the current inode is a directory. .Pp .It Cm chinum Ar dirslot Ar inum Change the i-number in directory entry .Ar dirslot to .Ar inum . .Pp .It Cm chname Ar dirslot Ar name Change the name in directory entry .Ar dirslot to .Ar name . This command cannot expand a directory entry. You can only rename an entry if the name will fit into the existing directory slot. .Pp .It Cm chtype Ar type Change the type of the current inode to .Ar type . .Ar Type may be one of: .Em file , .Em dir , .Em socket , or .Em fifo . .Pp .It Cm chmod Ar mode Change the mode bits of the current inode to .Ar mode . You cannot change the file type with this subcommand; use .Ic chtype to do that. .Pp .It Cm chflags Ar flags Change the file flags of the current inode to .Ar flags . .Pp .It Cm chown Ar uid Change the owner of the current inode to .Ar uid . .Pp .It Cm chgrp Ar gid Change the group of the current inode to .Ar gid . .Pp .It Cm chgen Ar gen Change the generation number of the current inode to .Ar gen . .Pp .It Cm btime Ar time .It Cm mtime Ar time .It Cm ctime Ar time .It Cm atime Ar time Change the creation (birth), modification, change, or access time (respectively) on the current inode to .Ar time . .Ar Time should be in the format .Em YYYYMMDDHHMMSS[.nsec] where .Em nsec is an optional nanosecond specification. If no nanoseconds are specified, the .Va birthnsec , .Va mtimensec , .Va ctimensec , or .Va atimensec field will be set to zero. Note that .Cm btime is available on UFS2 file systems only. .Pp .It Cm quit , q , exit , Em <EOF> Exit the program. .El .Sh SEE ALSO .Xr editline 3 , .Xr fs 5 , .Xr clri 8 , .Xr fsck 8 .Sh HISTORY The .Nm utility appeared in .Bx 4.3 Tahoe . It used the source code for .Xr fsck 8 to implement most of the file system manipulation code. The remainder of .Nm appeared in .Nx 1.1 written by .An John T. Kohl . It first appeared in .Fx 2.1.5 ported by Peter Wemm. .Sh BUGS Manipulation of ``short'' symlinks has no effect. In particular, one should not try changing a symlink's type. .Pp You must specify modes as numbers rather than symbolic names. .Pp There are a bunch of other things that you might want to do which .Nm does not implement. .Sh WARNING Use this tool with extreme caution--you can damage an FFS file system beyond what .Xr fsck 8 can repair.
Upload File
Create Folder