need help with simple zenity script

[theinnercityhippy]

Hello,

I'm trying to write a simple script to back up all jpeg and png files from removable media in a graphical way using zenity as a bit of an exercise I've set myself.

I've reached a bit of a brick wall and can't understand the result I'm getting from a command so wsa hoping someone could help.

Cutting out superfluous stuff (like titles, text etc...) what I have in a nutshell is this;

#!/bin/bash
#
Medlist=`ls -1 -I cdrom0 /media | while read File; do echo "FALSE $File"; done`
#
ans1=$(zenity --list --title="Select Storage Device(s)" --text="Here is the list of removable storage devices." --checklist --multiple --separator="," --column " " --column "Removable Storage" $Medlist)

Now when I try to use find on the output in the next line like so;

ans2=`find /media/{$ans1} -name "*.jpg" -or -name "*.png"`
#
echo $ans2

I get an error saying find: file '/media/{disk,disk-1,etc}' not found.

If I enter the find command directly into the shell however, it works fine. I can't see why it isn't working as part of the script as the syntax in the error message seems fine.

Any ideas?

-JimDog*-

[fiomba]

Hi,
I didn't replay to your request to leave space to the Linux gurus and above all because I hadn't
understood your problem.
After 3 weeks I see that you still have 0 replays... I hope that you, in the meantime, have solved
your problem by yourself! .
If it's not the case... we can solve it ... starting however on more infos.
As I get it, you need a script to backup jpg & png files from removable media (CD. DVD, floppy,
pendrives or USB External drive)... what is zenity for?
Try before to solve your problem w/out zenity (which at max here has visualization purposes....)
To test zenity you should test the single dialogs alone...
Bye.

[secondmouse]

It would be nice if variable expansion works in the scenario you describe but unfortunately it doesn't. My work-around is not that pretty but it should work (basically it just expands the $ans1 variable "manually").

OLD_IFS=$IFS
IFS=','
target=''
for d in $ans1; do target="/media/$d $target"; done
IFS=$OLD_IF

ans2=`find $target -name "*.jpg" -or -name "*.png"`
#
echo $ans2

[secondmouse]

Well it seems my conclusion was too early. I've got the solution for you:

ans2=`eval find /media/{$ans1} -name "*.jpg" -or -name "*.png"`
#
ans2=`echo $ans2`

PS: I learned the trick from [ Internal Commands and Builtins , section eval ]