if you guys want to replace matched string in multiple files in linux

you can use find with sed command as below:

find /usr/share/xyz/html/ -type f -name '*.html' -exec sed -i 's/welcome/WELCOME/g' {} \;

explanation

find /path/ -type [f,d] -name 'filename' -exec command {} \;





sed -i 's/pattern/replace_string/g' filename