[R] Exact matching with grep

[Peter Dalgaard]

Mahieux Dimitri wrote:
> Hello,
>
> I would know if it is possible with grep to match a exact string. For 
> example, I want to match the string "DP2" (and only this) and grep match 
> "DP2BS" too.
> I have sought in the grep help but I didn't find what I want.
>   
"^DP2$" could be what you are looking for, although I wonder why you
didn't just test for equality with == in the first place. Also, word
matching as in "\\<DP2\\>" could be relevant.

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