How do I use search function in Mint 12?

[Konstellation]

I wanna search for specific keywords in a file. How do I do that? Is there even such function? I only see a search bar but I don't see anything like "search by criteria" or something.

[veggen]

Honestly, I never managed to fully understand how's searching in Gnome supposed to work. Instead, I'd always use grep for that.
grep is a command line tool for searching withing files. You'll easily find millions of usage examples on the net, but here's a few to get you started:

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grep "search phrase" /path/to/file

will find lines containing "search phrase" in the specified file

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grep -i "search phrase" /path/to/file

the same as above, but case insensitive

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grep -r "search phrase" /path/to/folder

will list matching lines in any file withing the given folder

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grep -l -r "search phrase" /path/to/folder

will list only the names of the files containing the search phrase

In addition, keep in mind that, as with any other standard Linux command, you can chain grep with another grep or something else (find, wc, sed or whatever).

Now, let's hope someone gives an actual answer on how to use the provided feature in Gnome.

[Konstellation]

Thanks for the suggestion.
Need a file searching program. I need one that has the functionalities like Windows built-in Find / Search, eg. find by filename, file type, date, size, folder location, etc. & must be able to look for certain keywords within a file. I installed Recoll, but
seems to be too complicated for me. I really don't like using commands. Is there another file searching program out there that's easy to use?