Using OR Operator
Sample file,
cat fruits.txt yellow bananas green apples red oranges red apples
Using OR operator in grep search. Note you need a somewhat current version of grep (you are out of luck with Solaris),
grep 'apples\|oranges' fruits.txt green apples red oranges red apples
Look up if time permits how to do this using quotes to handle spaces or special characters....
Hmm, maybe all I need to do is escape any special characters and spaces probably work as is.