in reply to Re^4: Find common prefix from a list of strings
in thread Find common prefix from a list of strings

You can also just add '^' as the second parameter to join in the previous answer.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In Section Seekers of Perl Wisdom