topic Re: Searching an IP Address in one of the file from the whole system in Operating System - HP-UX

Searching an IP Address in one of the file from the whole system

ESS IITC — Tue, 14 Dec 2010 04:39:41 GMT

Dear all,

I have to find out one IP Address which is configured in a file. This file I'm not aware & can be placed in any directory or sub-directory in the System
OS is HPUX 11iv1.
I could not find any option in "grep" with recursive search.

Please advise.
Thanks in advance.
Vimal Upreti

Re: Searching an IP Address in one of the file from the whole system

Dennis Handly — Tue, 14 Dec 2010 05:39:38 GMT

>I could not find any option in "grep" with recursive search.

You can combine find(1) with grep(1):
find / -exec grep -e "string1" +

The "-exec ... +" allows you to search lots of files at one invocation.

Re: Searching an IP Address in one of the file from the whole system

kemo — Tue, 14 Dec 2010 05:48:46 GMT

find / -type f -exec grep -e "string" {} \;

Re: Searching an IP Address in one of the file from the whole system

Jai Ganesh — Tue, 14 Dec 2010 09:04:38 GMT

Hi,

You can use
find / -type f -exec grep "" {} \; -print

Jai.
http://itmms.wordpress.com/

Re: Searching an IP Address in one of the file from the whole system

James R. Ferguson — Tue, 14 Dec 2010 14:28:12 GMT

HI:

Don't use the '\;' terminator for find's '-exec'. Doing so means that you spawn *one* process for *every* entity that 'find' passes along.

Instead use the "+" terminator which signals the collection and bundling of very large number of arguments into a list that is passed to one or more spawned processes.

For small numbers of arguments, you probably won't notice the impact. In the case you are using, you will not only waste time but seriously degrade your system performance if you use '\;' instead of '+'.

Dennis meant to write:

# find / -exec grep -e "string1" {} +

...and most certainly meant to only examine files (and not directories too) by writing:

# find / -type f -exec grep -e "string1" +

Regards!

...JRF..

Re: Searching an IP Address in one of the file from the whole system

James R. Ferguson — Tue, 14 Dec 2010 14:28:34 GMT

Re: Searching an IP Address in one of the file from the whole system

ESS IITC — Tue, 14 Dec 2010 15:13:12 GMT

Dear Dennis Handly, kemo, Jai Ganesh, James R. Ferguson

Thanks a lot for your quick solution. It worked:
# find / -exec grep -e "string1" {} +

Regards.
Vimal

Re: Searching an IP Address in one of the file from the whole system

Dennis Handly — Tue, 14 Dec 2010 20:34:37 GMT

>Thanks a lot for your quick solution. It worked:

If you are happy with the answers you were given, please read the following about how to assign points:
http://forums.itrc.hp.com/service/forums/helptips.do?#33

>JRF: Don't use the '\;' terminator for find's -exec.

Another problem with ";" and grep is the fact that grep won't tell you the name of the file, since there is only one. Perhaps that's why Jai added -print to the end.

Re: Searching an IP Address in one of the file from the whole system

James R. Ferguson — Wed, 15 Dec 2010 12:45:47 GMT

Hi (again) Vimal:

> Dennis: Another problem with ";" and grep is the fact that grep won't tell you the name of the file, since there is only one. Perhaps that's why Jai added -print to the end.

That's a good point. It's probably clearer (if for whatever reason one uses the ';' terminator to process one argument at a time) to do:

# find / -type f -exec grep -e "string1" /dev/null {} \;

When 'grep' sees two file arguments it shows any matches with the file name for identification. Of course nothing will ever match the empty '/dev/null'.

Regards!

...JRF...