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#!/bin/sh
for fp in img/*; do
f="${fp##*/}"
out="thumb/${f%.*}.jpg"
if [ -e "$out" ]; then
continue
fi
echo "writting $fp -> $out"
gm convert -size 320x "$fp" \
-thumbnail '320x240^' \
-gravity center \
-extent 320x240 \
+profile "*" \
"$out"
done
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