Perl 5 version 6.0 documentation


  • ucfirst EXPR
  • ucfirst

    Returns the value of EXPR with the first character in uppercase (titlecase in Unicode). This is the internal function implementing the \u escape in double-quoted strings. Respects current LC_CTYPE locale if use locale in force. See perllocale and utf8.

    If EXPR is omitted, uses $_ .