Bashscripts.org

I am trying to use a value of an array as a counter. How do I increment the value in the array? Every time I try to add 1 to it or increment it, I get a "line 95: =1: command not found" error.

here's what the statement looks like:

${countarray[$index]}=`expr ${countarray[$index]} + $single`

Any help would be appreciated!

Wow, this one's been unanswered for a while. Did you ever figure this out?

Nope, sadly I am developing the script as a standalone java program. Sux, but thats life...lol

Here's a dumb question... What does "${countarray[$index]}" return before this line?

It sounds like when the script gets there, "${countarray[$index]}" is null, and so to the script sees that line literally as "=1"

If you are still interested in pursuing this angle, can you give me some more of the script? Just the array and things involved in making a counting loop maybe?

if you are just trying to populate the array's variable with a number that is reflective to the counter (wow... how confusing is that), then that would be rather easy.

I'm guessing you want something like (in pseudo code):

for i = 1 to 10
do
array(i)=i+1
done

that would be


Let me know if I'm barking up the wrong tree

*********
here's the actual code that I am using, it maybe a syntax error, but it is still puzzling me.

LIMIT=70
for ((index=0; index <= LIMIT ; index++))
do
if [ $used1 = ${numbarray[$index]} ]
then
arrayvalue=${countarray[$index]}

echo -e $arrayvalue
arrayvalue=`expr $arrayvalue + $single`
echo -e "arrayvalue after adding 1 ---->" $arrayvalue

${countarray[$index]}=`expr ${countarray[$index]} + $single`
echo -e "count array ---->" ${countarray[$index]}
fi
done
done


Thanks in advance!

should be

I'm not sure about the use of <= I'm almost positive it doesn't work
and that you should use the OR ( || ) instead like...


I havn't really dove into the rest... that's just what I see on the surface. Let me know your findings