Hi,
I run into issue trying to populate an array with unique random value,
the issue is that I have an endless loop, here the snippet:
...
# Populate playlist array with unique random values
while [ "$index" -le "$total" ]; do
clip="$(/usr/bin/numrandom /1..$total/)"
if [[ ! ${playlist[@]} =~ "$clip" ]]; then # [ -z
${rndarr[clip]} ]; then
# rndarr[$clip]=1
playlist[$index]=$clip
((index++))
fi
done
...
It works fine if I use the second array "rndarr[]". I use that array to
store 1 at the rndarr[$index] occurrence then, after incremented the
index, I check whether it's empty (no 1 stored) at the new $index value.
My wishes is to avoid to use a second array (rndarr[]) and use
playlist[] array only to do this, but with the above code I have an
endless loop, why?
I checked the remarkable ABS ¹ handbook at chapter 27 but nothing helped
about finding values inside an array (only replacement examples).
Thanks in advance for any hint, kind regards,
¹ https://tldp.org/LDP/abs/abs-guide.pdf
--
Franco Martelli
