resizing a directory of jpgs [solved]

[SurfahBoy808]

ok, I have a directory of jpg's. Instead of opening them up one by one in the gimp and resizing them, how do I resize a whole directory by file type? I know there's a way but I'm missing something in my command. I would imagine that this would be helpful if someone had a directory of more than 10.

 

so far, the closest I got were these 2 different commands which did the same thing. They both created a set of resized images and 2 sets of duplicates of the original size. What am I missing?

 

mogrify -size 3072x2048 -resize 800x600 +profile "*" *.jpg

convert -size 3072x2048 *.jpg -resize 800x600 *.jpg

 

[moved from Tips & Tricks by spinynorman]

[iphitus]

#! /bin/bash
DIRECTORY=/home/joe/images
for format in 'jpg' 'png'
do
 for image in `ls $DIRECTORY/*$format`
 do
   convert -resize 800x600 $DIRECTORY/$image
 done
done

 

that's a quick script, should work..

put it whereever, change DIRECTORY, then run it

and it *should* work, i havnt got anything to test on.

 

any bets aru upstages me with a one liner ;)

[Steve Scrimpshire]

find . -iname "*.jpg" -exec sh -c 'convert -size 800x600 "${1}" -resize 800x600 +profile "*" "${1//.jpg/-new.jpg}"' {} {} \;

 

or just

 

find . -iname "*.jpg" -exec sh -c 'convert -size 800x600 "${1}" -resize 800x600 +profile "*" "${1}"' {} {} \;

 

if you don't want to save the old one.

[SurfahBoy808]

Thanks for your replies guys. The only one out of the 3 that worked was this code. How would I make the new images overwrite the old ones? do I just take out the -new part?

 

 

find . -iname "*.jpg" -exec sh -c 'convert -size 800x600 "${1}" -resize 800x600 +profile "*" "${1//.jpg/-new.jpg}"' {} {} \;

[Steve Scrimpshire]

find . -iname "*.jpg" -exec sh -c 'convert -size 800x600 "${1}" -resize 800x600 +profile "*" "${1}" && echo "`basename ${1}` resized"' {} {} \;

 

This one works. I've tested it. Copy and paste it. This one will overwrite the old. All I did was add echoing some output so you can see that it is doing something.

[SurfahBoy808]

cool