Question

Write a script which receives a list of strings as parameters. Input an “ index string ”. Iterate through the list of strings and apply the `expr index …` operation on each string using the index string as the index. Output the string and the result of the index operation. When done, run it passing the string

abacab foxtrot duke trespass

and input the index string of abcd. Your output should be abacab 1, duke 1, foxtrot 0, trespass 6.

Answer 1

read the strings using the below command

read -a arr

thus arr will strores the strings.

Now read key string

read key

now for each string in a run a for loop.

for a in ${arr[@]}
do 
  echo 'expr index $key $a'
done