|, &, ^ and ~ also work on strings. 

>perl -e "print 'A'|'B'
C
>perl -e "print 'C'&'E'
A
>perl -e "print 'A'^' '
a

[download]

I wish << and >> did as well.

Documented in perlop

In reply to Re^6: Incrementing a large number without Math::BigInt by ikegami
in thread Incrementing a large number without Math::BigInt by Cap'n Steve

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