Programming

open target folder of html files (/project/html/)
read in all html files
*do the stuff here:
check for lines containing "embed_music", if yes delete
string replace for words with "Paragraph" to "Absatz"
*
close folder

find /project/html -name "*html" | while read filename
do
    if [[ ! -f $filename- ]]    # if a backup exists, don't do anything
    then
        mv $filename $filename-     # make backup
        sed '/embed_music/d; s/Paragraph/Absatz/;' $filename- >$filename # make changes
    fi
done

# find .  -type f -exec sed -i '/embed_music/d;' {} \;

 
#  find . -type f -exec sed -i 's/Paragraph/Absatz/' {} \;

find . -type f -exec sed -i '/embed_music/d; s/shirish/shukla/g' {} \;