Recursive grep

This tip is for grepping a pattern even in the sub-directories of a particular directory in addition to the files in the current directory. Since grep -R <> <> is not available on all flavors, this can be really helpful. The command is as follows:

find -name | xargs grep

The arguments are self-explanatory. The output of find will be xarg'ed to the input of grep and these will be searched for searchstring.

from Tech-Recipes

See also "How can I recursively grep through sub-directories?" @ A. P. Lawrence