find a special string for all files in a directory

how to find a special string from all files in a particular directory in Redhat / Centos ?

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grep -r string directory
AXISHKAuthor Commented:
I mean the file content with special string pattern, not the filename....

to search for a filename pattern
find directory -name 'pattern'
Gerwin Jansen, EE MVETopic Advisor Commented:
>> I mean the file content with special string pattern, not the filename....
ozo's comment (grep -r) will just do that - did you test?

Only if you want subdirectories as well it should be grep -R string directory

What is the string you are looking for?

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