I am modifying a script that reads in a user email. It is very simple, too simple.
echo -n "Please enter your example.com email address: "
read email
email=${email%%@example.com} # removes trailing @example.com from email
echo "email is $email"
This works, but only for lower case @example.com. How could I modify this to remove the trailing @example.com, case insensitive?
If you have bash 4:
email=${email,,}
email=${email%%@example.com}
Otherwise, perhaps just use tr:
email=$(echo "${email}" | tr "A-Z" "a-z")
email=${email%%@example.com}
Update:
If you are just wanting to strip the host (any host) then perhaps this is really what you want:
email=${email%%@*}