A command to find special files according to major and/or minor numbers

[Jdamian]

"find" command cannot search for special (device) files whose major be a given value, e.g., LVM files.

As special files has no size, its major/minor numbers are contained in the "size" field of the INODE entry. Thus I thought that "find" command developer made a variation on "-size" option to allow search for major/minor numbers... but not.

Does anyone know a extended-find command ?

[Frederic Sevestre · Accepted solution]

Hi,

You should try to use find with grep.

for example :
# find /dev -type b(or c) -exec ll {} \; | grep "0x0a0000"

Fr??d??ric

[Jeff Schussele]

Well you can use

find -type c -> for char devices
-type b -> for block devices

Then do

-exec ll {} \;

to get the full listing which will include the major/minor numbers
This could then be piped to grep to get what you want

EX

find /dev -type b -exec ll {} \; | grep 64

HTH,
Jeff

[Riou_1]

Frederic is quite right.

I will just give you another way to locate a specified Major number

find /dev/ -exec ll {} \; | awk ' $5 == XX { print $0 }'

where XX is the major

if you look for a minor number just change $5 with $6 ...etc ...

regards