jpegtran optimize without changing filename

Question

I need to optimize some images, but not change their name.

jpegtran -copy none -optimize image.jpg > image.jpg 

However, this seems to crea

Answer 1

I use this script. Works flawlessly. I hope this helps.

https://gist.github.com/iimos/7424025

#! /bin/sh

EXTENSIONS="jpe?g"

if [ -z "$1" ]; then
    DIR="`pwd`"
else
    DIR="$1"
fi

# Optimize JPEG images
find "$DIR" -regextype posix-egrep -regex ".*\.($EXTENSIONS)\$" -type f | xargs -I{} jpegtran -optimize -progressive -outfile "{}.optimized" "{}"

# Rename xxx.jpg.optimized -> xxx.jpg
find "$DIR" -name '*.optimized' -print0 | while read -d $'\0' file; do 
    chown $(stat -c "%U:%G" "${file%.optimized}") "$file"
    chmod $(stat -c "%a" "${file%.optimized}") "$file"
    mv -f "$file" "${file%.optimized}"; 
done

Usage 1:

optimize-images.sh /images/dir

Usage 2:

cd /images/dir
optimize-images.sh