HP-UX Reference (11i v2 03/08) - 1M System Administration Commands A-M (vol 3)

f
fsdb_vxfs(1M) fsdb_vxfs(1M)
fields are listed above.
d# Set the current directory entry to the specified number. The current block is
treated as a directory block. If the current block is an immediate data area for an
inode, then the block is treated as containing immediate directory entries. If it is
the last command on a line, the directory entry at the resulting offset is printed.
directory_entry_field
=#
Set the contents of the given directory field to the specified number. The current
directory entry specifies where the directory entry is located. The resulting value is
printed in hexadecimal.
nm = string Set the directory name field of the current directory entry to the specified string.
The resulting value is printed as a character string.
calc # [+|-|∗|/ #]
Take a number or the sum, difference, product or dividend of two numbers and
print in decimal, octal, hexadecimal and character format.
find # B|H|W|D [#]
Search for the given numeric pattern in the file system. The size of the object to
match is specified. If a double-word is specified, then two numbers must be given.
The search is performed forward from the current offset. A maximum number of
blocks to search can be specified. If found, the location and value are printed in
hexadecimal.
find string [#]
Search for the given character string in the file system. The search is performed
forward from the current offset. A maximum number of blocks to search can be
specified. If found the location and string are printed.
fmtlog Format all intent log entries. A completely formatted intent log can be quite
lengthy. It is a good idea use the fsdb command as a filter and redirect the output
to a file or pager to look at a complete log format.
listfset List all filesets by their indexes and names.
mapi # Treat the number as a logical offset in the file described by the current inode, and
print the extent that it maps to.
reset Does the equivalent of exiting fsdb and restarting on same device.
Help Commands
The following help commands are supported:
h|help Display primary help screen.
h mod Display modification-commands help screen.
h print Display print-commands help screen.
EXAMPLES
386i Prints inumber 386 in an inode format. This now becomes the current working inode.
ln=4 Changes the link count for the working inode to 4.
8192B.p S Prints the super-block of this file system symbolically.
d7.nm = foo Changes the name field in the directory slot to foo.
2i.a0.d7.ino = 3
Changes the inumber for the seventh directory slot in the root directory to three (also
shows how to combine several operations on one command line)
23i.im.d5 Prints the sixth directory entry in the immediate area of inode 23.
WARNINGS
Always run a file system check (see fsck(1M)) after using the
fsdb command to modify a file system.
(Use fsck -o full,nolog.)
Some aspects of
fsdb apply to a specific VxFS disk layout version.
Section 1M−−236 Hewlett-Packard Company − 7 − HP-UX 11i Version 2: August 2003