Linux find and replace text within all files within a directory

There is a fast way to replace all the occurrences of one world within a certain directory including subdirectory by using a one line Linux code (by using Perl):



find /path/to/start/from/ -type f | xargs perl -pi -e 's/old_word/new_word/g'





REMEMBER ALWAYS BACKUP BEFORE DOING SOMETHING

If you want to do word replacement using the vim

:%s/search/replace/g                     whole file

:2,12s/search/replace/g                 from line 2 to line 12