Replace in strings found by grep

Replace in strings found by grep

References

Reference NO 1

http://stackoverflow.com/questions/6178498/using-grep-and-sed-to-find-and-replace-a-string

Reference NO 2

http://stackoverflow.com/questions/1169927/using-sed-and-grep-to-search-and-replace

Reference NO 3

http://vasir.net/blog/ubuntu/replace_string_in_multiple_files/

Reference NO 4

http://www.unix.com/shell-programming-scripting/46219-how-replace-all-string-instances-found-find-grep.html

Reference NO 5

http://www.linuxforums.org/forum/newbie/126293-can-i-use-grep-find-replace-text.html

Reference NO 6

http://diginit.wordpress.com/2008/04/23/unix-global-find-and-replace-using-find-grep-and-sed/

Reference NO 7

http://www.dslreports.com/forum/r25553103-Grep-find-and-replace-

Reference NO 8

http://stat.ethz.ch/R-manual/R-devel/library/base/html/grep.html