EOF while looking...

[htamayo]

Hi, I'm trying to use a code that change the wallpaper automatically, but I obtain the next error:
Line 18: Unexpected EOF while looking for matching `` '
Line 25: sintax error: Unexpected End of File

I think the code line is:
cnt=`wc -l "$temp_bg_list" | cut -f1 -d " "`

But I really don't understand what is the problem, so, can you help me?

Thanks a lot

#!/bin/bash
#tomado de: www.djlosch.com

bg_path=/home/tamayo/wallpapers
extensions="jpg png gif jpeg JPG GIF PNG"
temp_bg_list=/tmp/bg_change_list

rm -f $temp_bg_list

for extension in $extensions
do
    find $bg_path -iregex ".*.$extension" >> "$temp_bg_list"
done

cnt=`wc -l "$temp_bg_list" | cut -f1 -d " "`
all_bgs=`echo \ `expr $RANDOM % $cnt\``

selected_bg=`head -n$all_bgs "$temp_bg_list" | tail -n1`

logger "Changed desktop to: $selected_bg"

gconftool-2 -t string -s /desktop/gnome/background/picture_filename 
"$selected_bg"
exit 0

[Cabhan]

The problem is this line:

all_bgs=`echo \ `expr $RANDOM % $cnt\``

You have the first backtick, which starts the expression. You then have a slash-space-backtick, and that backtick closes the expression. A little further on you have a slash-backtick, which escapes the backtick, so nothing happens. The last backtick opens a new expression, which continues onto the next line, causing the problem.

I assume that you want all_bgs to hold a random number? Why not just do this:

all_bgs=$(expr "$RANDOM" % "$cnt")

$(...) syntax is the same as `...` syntax, but I find it a lot more readable. Also, the echo is entirely unnecessary here.