This script has the same function as the Flickr script, it takes a Picasaweb album and gets the BBCode to allow you to share it on a forum, the urls that we are going to work with have the picasaweb.google.com// structure, for example this URL:
http://picasaweb.google.com/orvtech/Hdd

Lets take a look at the code:
#!/bin/bash SIZE=400 echo $1 | \ curl -s `awk --field-separator=/ '{print "http://picasaweb.google.com/data/feed/api/user/"$4"/album/"$5}'` |\ sed -e 's/\"/\ /g' -e s/\'/\ /g |\ tr ' ' '\n' |\ grep s72 |\ awk '{print "[url='$1'][img]"$0"[/img][/url]\n"}' |\ sed s/s72/s$SIZE/g

Lets name this script Picasa2BBCode.sh, we can execute it like this:
sh Picasa2BBCode.sh http://picasaweb.google.com/orvtech/Hdd

We can modify the constant SIZE in this script, it can take the values 72px, 144px, 288px, 320px, 400px, 512px, 576px, 640px, 800px or 1024px but if the image is smaller than 800px we might have some problems. Running the script will produce an output like this:
[url=http://picasaweb.google.com/orvtech/Hdd#][img]http://lh6.ggpht.com/_WwtoUQV8M_8/S5kBtkqKAdI/AAAAAAAAPbM/I0LCPdB-qpQ/s400/IMG_7457.JPG[/img][/url] [url=http://picasaweb.google.com/orvtech/Hdd#][img]http://lh3.ggpht.com/_WwtoUQV8M_8/S5kBtwXW08I/AAAAAAAAPbQ/Y636HBHOxEo/s400/IMG_7458.JPG[/img][/url] [url=http://picasaweb.google.com/orvtech/Hdd#][img]http://lh5.ggpht.com/_WwtoUQV8M_8/S5kBtzPQLrI/AAAAAAAAPbU/ZOWfnh4uGuA/s400/IMG_7459.JPG[/img][/url] [url=http://picasaweb.google.com/orvtech/Hdd#][img]http://lh5.ggpht.com/_WwtoUQV8M_8/S5kBuJEzUPI/AAAAAAAAPbY/qxTGuFR_EbA/s400/IMG_7461.JPG[/img][/url] [url=http://picasaweb.google.com/orvtech/Hdd#][img]http://lh3.ggpht.com/_WwtoUQV8M_8/S5kBupiHjqI/AAAAAAAAPbc/FShn8ryEr54/s400/IMG_7462.JPG[/img][/url] [url=http://picasaweb.google.com/orvtech/Hdd#][img]http://lh5.ggpht.com/_WwtoUQV8M_8/S5kCW9ags7I/AAAAAAAAPbw/wFYET5XlgkQ/s400/IMG_7463.JPG[/img][/url] [url=http://picasaweb.google.com/orvtech/Hdd#][img]http://lh5.ggpht.com/_WwtoUQV8M_8/S5kCXA_XujI/AAAAAAAAPb0/WDc3N1tLDCw/s400/IMG_7464.JPG[/img][/url] [url=http://picasaweb.google.com/orvtech/Hdd#][img]http://lh4.ggpht.com/_WwtoUQV8M_8/S5kCXDnyhkI/AAAAAAAAPb4/SWuagR3LA8c/s400/IMG_7465.JPG[/img][/url] [url=http://picasaweb.google.com/orvtech/Hdd#][img]http://lh5.ggpht.com/_WwtoUQV8M_8/S5kCXTt6vaI/AAAAAAAAPb8/i1RmMrL5slg/s400/IMG_7466.JPG[/img][/url] [url=http://picasaweb.google.com/orvtech/Hdd#][img]http://lh5.ggpht.com/_WwtoUQV8M_8/S5kCX8hUk-I/AAAAAAAAPcA/YzOe_0bO0Jw/s400/IMG_7468.JPG[/img][/url] ...

Spanish version: De Picasa a BBCode.