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Multiplication of array elements

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# 1  
Old 11-11-2014
Multiplication of array elements
Hi,

I can't find out how to create correct code to get multiplication of each elements of array. Let's say I enter array into command line (2 3 4 5 6 8) and i need output 2*3*4*5*6*8=5760.

I tried this one, but answer is 0.
Code:
for i in $@; do
mult=$((mult*i))done
echo "mult: " $mult

Guys, please help Smilie
Last edited by bartus11; 11-11-2014 at 07:36 AM.. Reason: Please use [code][/code] tags.
# 2  
Old 11-11-2014
Got a recent bash? Try
Code:
line=(2 3 4 5 6 8) 
echo $(($(IFS="*"; echo "${line[*]}")))
5760

# 3  
Old 11-11-2014
Perfect. Thank you very much.
# 4  
Old 11-11-2014
or set to mult to 1 (initial value)
Code:
mult=1
for i in $@; do
mult=$((mult*i)) ; done
echo "mult: " $mult

# 5  
Old 11-11-2014
and/or...
Code:
mult=1
for i
do
    mult=$((mult*i))
done
IFS="*"
echo "$@=$mult"

$ ./func 1 2 3 4 5 6 8
1*2*3*4*5*6*8=5760
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