Linux command to find all files in a directory which contain ip addresses.

Shakthi Yokesh · 08-19-2012, 03:00 AM

Give a Linux shell command to find all files in a directory which contain ip addresses.

sycamorex · 08-19-2012, 03:28 AM

Hi and welcome to LQ.

Looks like homework. What have you tried so far?

Shakthi Yokesh · 08-19-2012, 04:31 AM

@sycamorex: this is not a homework question.It is an interview question.I actually wrote something like
find /etc -exec grep '[0-9][0-9]*[.][0-9][0-9]*[.][0-9][0-9]*[.][0-9][0-9]*' {} \; which displays all the IP addressess present in /etc directory.......actually i just want to display the file names in which IP addressess are present....how to do that??please help me

anon237 · 08-19-2012, 04:38 AM

Have a look at grep's -L and -l options.

Shakthi Yokesh · 08-19-2012, 05:14 AM

@druuna: I could not get your clue.....It would be grateful if u provide me with the command

anon237 · 08-19-2012, 05:16 AM

Did you have a look at the grep man page (man grep)?

Code:

find /etc -exec grep -L '[0-9][0-9]*[.][0-9][0-9]*[.][0-9][0-9]*[.][0-9][0-9]*' {} \;
find /etc -exec grep -l '[0-9][0-9]*[.][0-9][0-9]*[.][0-9][0-9]*[.][0-9][0-9]*' {} \;

Shakthi Yokesh · 08-19-2012, 05:27 AM

@druuna: Thank u so much for your patience in explaining me this...I got the answer now....Since I am just a beginner in linux it was difficult for me to grasp your clue....once again thank u so much for helping me

sycamorex · 08-19-2012, 05:28 AM

@druuna
I think the OP wants -l not -L

Try:

Code:

find /etc -exec grep -rl '[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}' {} \;

anon237 · 08-19-2012, 05:31 AM

Quote:

Originally Posted by sycamorex

@druuna
I think the OP wants -l not -L

Yep, you are correct!