Arrays

#!/bin/sh

colors=(red blue green black purple yellow)
idx=0
echo ${#colors[*]}
while [ $idx -lt ${#colors[*]} ]
do
    echo ${colors[$idx]}
    idx=`expr $idx + 1`
done

echo

#print the strings in the array and their lengthes
for idx in ${!colors[*]}
do
    echo ${colors[$idx]} ${#colors[$idx]}
done

echo

for item in ${colors[*]}
do
    echo $item
done

echo

echo ${colors[*]}

echo