#!/usr/bin/bash RATIO=10 cd static/images mkdir -p min/ max/ #find -maxdepth 1 -name "*.jpg" | xargs -I_ convert -scale $((100/$RATIO))% -scale $((100*$RATIO))% -gaussian-blur x${RATIO} -interlace Plane -quality 70% _ min/_ COMPRESSOPTS="-strip -interlace Plane -quality 75%" find -maxdepth 1 -name "*.jpg" | xargs -I_ convert -gaussian-blur x${RATIO} $COMPRESSOPTS -verbose _ min/_ find -maxdepth 1 -name "*.jpg" | xargs -I_ convert $COMPRESSOPTS -verbose _ max/_