topic Re: HPUX : Find Command , Locating soft and hard links in Operating System - HP-UX

HPUX : Find Command , Locating soft and hard links

LG Porter — Thu, 01 Aug 2002 13:04:26 GMT

HPUX 10.20 I need to migrate a exsisting application to another system, can the "find" command be used to locate and identify all of the soft links with are now in place on the old system?

Re: HPUX : Find Command , Locating soft and hard links

Chris Wilshaw — Thu, 01 Aug 2002 13:08:24 GMT

find / -type l -print

Chris

Re: HPUX : Find Command , Locating soft and hard links

Christopher McCray_1 — Thu, 01 Aug 2002 13:09:01 GMT

Hello,

# find / -type l -exec ll {} \; > linkfile

Hope this helps

Chris

Re: HPUX : Find Command , Locating soft and hard links

Tom Maloy — Thu, 01 Aug 2002 13:09:34 GMT

find -type l /

will find all of the symbolic links.

Tom

Re: HPUX : Find Command , Locating soft and hard links

T G Manikandan — Thu, 01 Aug 2002 13:10:34 GMT

find /home -type l -print

Thanks

Re: HPUX : Find Command , Locating soft and hard links

Sajid_1 — Thu, 01 Aug 2002 13:11:03 GMT

Hi,

what about using -type l option:
# find / -type l ..

this will list all symbolic links. Read the man pages and check if you need to use the -follow option too.

Re: HPUX : Find Command , Locating soft and hard links

S.K. Chan — Thu, 01 Aug 2002 13:11:12 GMT

You can use "-type l" option in find. Check "man find" for details. For example ..
# cd /opt
# find . -type l -exec ls -sl {} \;
==> List all symbolic links recursively in /opt.

Re: HPUX : Find Command , Locating soft and hard links

Stefan Farrelly — Thu, 01 Aug 2002 13:12:57 GMT

Soft links are easy - use the find commands as previously listed. Hard links are tougher. You will need to use the ls -l option. If this value is > 1 then they are linked.

eg.
cd /usr/sbin
ll vg*
You will see the link count at 31 - all these programs are hardlinked to each other. They have the same sum values also.I think it best to do a sum on all files and those with the same sum value are hardlinks to each other.

Re: HPUX : Find Command , Locating soft and hard links

Hai Nguyen_1 — Thu, 01 Aug 2002 13:14:01 GMT

LG Porter,

Yes you can do it with this command run by root.

# find / -type f | more

or redirect to a file.

Hai

Re: HPUX : Find Command , Locating soft and hard links

Hai Nguyen_1 — Thu, 01 Aug 2002 13:15:40 GMT

LG Porter,

instead of:

# find / -type f | more

I actually meant this:
# find / -type l | more

Hai

Re: HPUX : Find Command , Locating soft and hard links

Rich Wright — Thu, 01 Aug 2002 13:30:12 GMT

For hard links, you need to understand that every file name that references an inode number is a hard link.
For example if you enter the following command:
ls -li /sbin/vg*

You will see that all of the vg... comands are really one executable file because the inode is the same. They just perform differently when the code determines what hard link name was used.

Re: HPUX : Find Command , Locating soft and hard links

Rodney Hills — Thu, 01 Aug 2002 13:42:01 GMT

To search for hard links, try this one liner-

ncheck /dev/vg00/lvol5 | sort -n | awk '$1==prev{print last;print $0}{prev=$1;last=$0}' | uniq

Where /dev/vg00/lvol5 can be replaced with whatever filesystem you wish to scan.

This will produce of a list of all filenames that share the same i-node with at least one other file.

for instance, here are some of the files displayed for /dev/vg00/lvol6 (/usr on my system).

29094 /share/lib/terminfo/5/50
29094 /share/lib/terminfo/w/wy50
29094 /share/lib/terminfo/w/wyse50
29116 /share/man/man1m.Z/mount_cdfs.1m
29116 /share/man/man1m.Z/umount_cdfs.1m

The first number is the common i-node number. The filename that follow is relative to the filesystem you are scanning.

Depending on the number of files in the filesystem, it could take a while to run.

-- Rod Hills