On Thu, 1 Jun 2006, Eben King wrote:
>
> What I've got is a shell script, written in ksh (think of it as a dialect of
> bash):
>
> ...
> 40 function choose_a_background
...
> So, I need to add "-name tall\*" or "! -name tall\*" to find's options. I've
> tried between 1 and 6 backslashes in line 47, single quotes around tall_\\*
> with varying numbers of backslashes, reducing "$BACKGROUNDDIR $PATTERNDIR" to
> "/export", reducing tall_\\* to \\*, and what I've found out is that:
...
> So, can anyone see where I've screwed up?
I finally settled on "just make it work, forget about making it pretty":
40 function choose_a_background
41 {
42 [[ -z $BACKGROUNDDIR ]] && BACKGROUNDDIR=/export/media/backgrounds
43 [[ -z $PATTERNDIR ]] && PATTERNDIR=/export/media/patterns
44
45 case $1 in
46 tall)
47 bang="" ;;
48 wide)
49 bang="!"
50 esac
51
52 # Initialize PRNG in ksh
53 [[ -c /dev/random ]] \
54 && RANDOM=$( dd if=/dev/random bs=4 count=1 2>/dev/null \
55 | sum - \
56 | cut -f 1 -d " " )
57
58 numfiles=$(find $BACKGROUNDDIR $PATTERNDIR -type f $bang -name tall_\* ! -name random\* | wc -l)
59 print -u2 found $numfiles files
Probably the solution relies on the deft use of "eval". I had hoped that I
could save all the images' names into an array and thereby count them, so
I'd only have to do one "find". But it seems arrays are limited to (2^10)-1
(aka 1023) entries, so that won't happen that way.
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