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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Find which service was used by which port number

Terminal - Find which service was used by which port number
cat /etc/services | egrep [[:blank:]]<port_number>/
2010-11-25 08:04:31
User: xutale
Functions: cat egrep
Find which service was used by which port number

Apply to almost linux distroes.


There are 6 alternatives - vote for the best!

Terminal - Alternatives
getent services <port_number>
grep '\<110/' /etc/services; grep '\b110/' /etc/services
2010-11-25 08:29:42
User: unefunge
Functions: grep
Tags: grep services

I used 110 as the port number in examples for clarity.

backslash+lessthan or backslash+b marks 'edge of the word'.

Know a better way?

If you can do better, submit your command here.

What others think

1. you don't need cat:

egrep [[:blank:]]/ /etc/services

2. the regex could be a bit shorter (port_nr=110):

egrep '\


egrep '\b110/' /etc/services

3. You don't have to use egrep with the shorter version:

grep '\

Comment by unefunge 386 weeks and 6 days ago

The less-thans were removed from the comment. I'll post "my commands" as alternatives.

Comment by unefunge 386 weeks and 6 days ago

Your point of view

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