Legacy ImageMagick Discussions Archive

I'm pretty sure the problem lies with the quotes that you use in the for statement. You've used the normal quote character whereas I think you need back-quotes:
for image in `ls *.jpg`

Best Wishes
Pete

A number of methods, are listed at the end of a description of the mogrify command in IM examples. I just added the above advanced xargs simpification, to that section

mogrify examples...
http://www.cit.gu.edu.au/~anthony/graph ... ogrify_not

Use

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for image in *.jpg

not

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for image in ls *.jpg

which expands to

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ls
file0.jpg
...
fileN.jpg

and then cannot find the file called "ls".

To remove the instances of things like thumbnail.jpg use

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for image in *.jpg
in
  case "$image" in
  *.thumbnail.jpg) continue ;;
  esac
  ...
done

The case will have the script ignore the file names that matched.

For a recursive 'find' method use

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find . -type f -name '*.jpg' \! -name '*.thumbnail.jpg' | xargs ....

Legacy ImageMagick Discussions Archive

Need to Batch .JPG Modify - Linux