man showcfont (Commandes) - displays all characters in the current screen-font.
NAME
showcfont - displays all characters in the current screen-font.
SYNOPSIS
showfont
DESCRIPTION
showfont uses successive switches of the Application Charset Map in 8-bit console-mode to have all 256 or 512 characters in the current font displayed on the screen.
The equivalent program in the kbd package is called showconsolefont.