The Label Widget (Perl in a Nutshell, 2nd Edition)

21.7. The Label Widget

Create a noninteractive label with the Label command. A label is used to display text or an image.

$parentwidget->Label (options)

The standard configuration options that apply to Label are: -anchor, -background, -bg, -bitmap, -borderwidth, -bd, -cursor, -font, -foreground, -fg, -height, -high-lightbackground, -highlightcolor, -highlightthickness, -image, -justify, -padx, -pady, -relief, -takefocus, -underline, -width, and -wraplength.

Other options are:

-text => 'text': Defines the text string displayed in the label. See also -textvariable.
-textvariable => \$variable: Points to the variable containing text to be displayed in the label. Button text will change as $variable does.