Linux Exclude unwanted string from Linux grep

[Gabriel Turqos]

I have a configuration file which is a simple text. I want to list some configuration line but except some sitring. How can I use Linux grep to exclude and search for given strings? Thanks in advance for your help!

 

[livix07]

I think you have more chances to find the answer on Stackoverflow.

 

[Neemobeer]

Specifically using grep you'd need to pipe one grep to another such as say you want to find occurrences of 'car' but not 'racecar'

grep 'car' /home/user/somefile.txt | grep -v 'racecar'

It would be a shorter command if you used egrep but you'd need to understand regex expressions to make correctly.