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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
0
Find which service was used by which port number

Apply to almost linux distroes.

Alternatives

There is 1 alternative - 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
0

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 '\

-or-

egrep '\b110/' /etc/services

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

grep '\

Comment by unefunge 244 weeks and 5 days ago

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

Comment by unefunge 244 weeks and 5 days ago

Your point of view

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