Laurence Orchard wrote:
> Hi All
>
> I have a series of digital photos taken with my camera using a time
> delay of 1 min over two hours.
>
> I would like to use these as a changing screen background on a 2 hour
> loop.
> I know how to change the background using the menu system, but I think I
> need to use a script to do what I want.
Under GNOME, try putting something like this in your (user) crontab:
#!/bin/bash
# rotate the backdrop in X
PIC_DIR=/mnt/data/Pictures/Backdrop
cd $PIC_DIR || exit
CHOICE=$(expr $RANDOM \* $(ls 2>/dev/null | wc -l ) / 32768 + 1)
PICTURE=$(ls 2>/dev/null | tail -n $CHOICE | head -1)
nice -20 gconftool-2 --type=string \
--set /desktop/gnome/background/picture_filename "$PIC_DIR/$PICTURE"
Note: that \ on the penultimate line must be right at the end of the
line (no further spaces or tabs). Obviously, you replace PIC_DIR's
value with where you keep your pictures.
HTH,
James.
--
E-mail address: james@ | "OPENING LINES OF THE 23RD PSALM
westexe.demon.co.uk | Original version:
| The Lord is my Shepherd, I'll not want."
| -- "The Independent" thinks David spoke English
