Comments on: Change quality of lots of images by one click :: linux http://tech.karolzielinski.com/change-quality-of-lots-of-images-by-one-click-linux ... because from time to time I'm a web developer, too Wed, 28 Jul 2010 10:20:23 +0000 hourly 1 http://wordpress.org/?v=3.0 By: Mike http://tech.karolzielinski.com/change-quality-of-lots-of-images-by-one-click-linux/comment-page-1#comment-11 Mike Sun, 23 Aug 2009 06:04:06 +0000 http://tech.karolzielinski.com/?p=88#comment-11 You can accomplish the goal of your first example without perl: for f in *.jpg; do convert $f -quality 80% lowqual-$f; done I prefer to save them in a new directory instead of messing with the filenames: mkdir lowqual for f in *.jpg; do convert $f -quality 80% lowqual/$f; done When you don't need the originals, just use mogrify: mogrify -quality 80% *.jpg You can accomplish the goal of your first example without perl:

for f in *.jpg; do convert $f -quality 80% lowqual-$f; done

I prefer to save them in a new directory instead of messing with the filenames:

mkdir lowqual
for f in *.jpg; do convert $f -quality 80% lowqual/$f; done

When you don’t need the originals, just use mogrify:

mogrify -quality 80% *.jpg

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