[vogueestylee]

hi all hackers

will you help me? I would like to

1. copy files in directory with adding for example "-hd" into names..

so for example, when I got:

picture.png
picture2.png

after running the script I would like to have:

picture.png
picture2.png
picture-hd.png
picture2-hd.png



..so 4 files.. is it possible? Don't like automator, I preffer sh script for faster work,


and then I would like to use this script

Code:
#!/bin/bash\
for f in *.*
do convert $f  -resize 50%  $f 
done

but ONLY for pictures without containg "-hd" in name..

using snow leo 10.6.8

how to do this?

or better way maybe:

1. make directory temp
2. copy *.jpg into temp
3. rename *.jpg to add "-hd"
4.run script to resize original non hd pictures
5. copy -hd from temp to base folder

how to do this?

thank you!

[wrambro]

Should be pretty easy to do without the extra overhead of creating the temp directory, moving files back and forth, etc.

Code:
#!/bin/bash
for f in *.*; do
	echo "$f"
	nm=`echo "$f" | sed 's/.jpg/-hd.jpg/'`
	cp "$f" "$nm"
	convert -resize 50% "$nm"
done

This is a good start, but has a few issues.
1) It will not discriminate between files you want to convert and files you've already converted. So if you run it twice, you'll end up with <filename>-hd-hd.jpg and it will be 25% of the original size
2) It will copy and try to convert all files (not just image files).

You can fix these issues modifying the script slightly:

Code:
#!/bin/bash
for f in *.*; do
	if [[ "$f" == *.jpg && "$f" != *-hd.jpg ]]; then
		nm=`echo "$f" | sed 's/.jpg/-hd.jpg/'`
		cp "$f" "$nm"
		convert -resize 50% "$nm"
	fi
done

Now the limitation is that the script will only handle .jpg files (not .jpeg, not .JPG, etc.) You can tweak the script so it can handle multiple extensions, but I'll leave that enhancement as a project for you