Grep and regular expressions

[mindcooler]

Ok, I need to grep a large number of text files and display all the lines containing two words (no matter where they appear on the line). I understand that this is done using a regular expression pattern given as an argument to grep, but I can't figure out the proper syntax. Could someone show me how to do this, please?

[bandwidth_pig]

Grep is a great tool. I think what you need is:

grep 'text here' filename

[serz]

You can also take a look to the man page. man grep. It will help if you're wanting to do something more specific.

[mindcooler]

No, that is not it. grep "text here" filename will only return a match for the string "text here". I need to get a match no matter where the words appear on the line, and I mean each word individually. They may or may not be next to each other, I still want a match.

[mindcooler]

I did, serz. I understand from the man page that I have to use regular expressions to do this, but powerful as they are, they're not simple to get started with. Thus, I came here.

[mindcooler]

guess I can do:
grep word_one files | grep word_two

[serz]

Oh wait.. playing a bit with grep...

cat filename | grep [word1,word2]

Let me know if that's what you were looking for.

[mindcooler]

Well, mine works..didn't solve the problem I was really trying to solve, though. :(

[serz]

Oh wait.. this is it!

cat file1 file2 | grep [word1,word2]

That works..

[mindcooler]

Or what I wrote...:) thanks for your help...now I just have to solve the real problem, hehe