=over =item ucfirst EXPR X X =item ucfirst Returns the value of EXPR with the first character in uppercase (titlecase in Unicode). This is the internal function implementing the C<\u> escape in double-quoted strings. If EXPR is omitted, uses L|perlvar/$_>. This function behaves the same way under various pragmas, such as in a locale, as L|/lc EXPR> does. =back