Pattern match in a string variable linux/unix

This example shows a simple way of searching for a pattern match in a string and return the decision.

For ex:

My_exceptions="abc 123"
My_string="Hey I am searching for 123"


for word in $My_exceptions
do
[ `echo $My_string |grep $word` ] && match_found="y" || match_found="n"
[ $match_found = y ] && break;
done





This works for environment like Solaris 5.10/5.11, Linux, ksh, bash