ucfirst

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.

If EXPR is omitted, uses $_ .

This function behaves the same way under various pragma, such as in a locale, as lc does.

© 1993–2016 Larry Wall and others
Licensed under the GNU General Public License version 1 or later, or the Artistic License.
The Perl logo is a trademark of the Perl Foundation.
https://perldoc.perl.org/5.20.2/functions/ucfirst.html