rename file
#!/usr/bin/env zsh
# all .html to .txt
rename 's/\.html$/\.txt/' *.html
# remove extensions .html
rename 's/\.html$//' *.html
# remove all trailing .live recursively
find . -type f -name "*\.live" -exec rename 's/\.live$//' {} \;
# rename all .javascript to .js recursively
find . -type f -name "*\.javascript" -exec rename 's/\.javascript$/.js/' {} \;