Linux : find and replace with grep and sed

http://ketan404.blogspot.com/2006/08/linux-find-and-replace-with-grep-and.html

ex1) 

grep -rl PATTERN directory/path/ | xargs sed -i 's/PATTERN/REPLACEMENT/g'

ex2)

find ./ -name "*.h" | xargs sed -i 's/#include <\/product\/cdmaone\/ubicell\/src\/OAMS\/A

GT_MAIN_Verizon\/src\/ruby\/insert.h>/\/\/#include <\/product\/cdmaone\/ubicell\/src\/OAMS\/AGT_MAIN_Verizon\/src\/ruby\

/insert.h>/g'

* '/' 문자의 경우 '\/'로 표현해야 하는 것을 주의할 것