Shell command: setfont

some fonts

setfont alt-8x8              #  A really small font
setfont cp850-8x8            #  Another small font
setfont drdos8x6             #  An even smaller font
setfont Lat2-Terminus16      #  A very beautiful font
setfont gr928-8x16-thin      #  A thin font
setfont cybercafe            #  A futuristic font
setfont gr737b-9x16-medieval #  A medieval font
setfont iso02-12x22          #  

Iterating over fonts

for font in $(find /usr/share/kbd -type f); do
  font=$(basename $font .gz  )
  font=$(basename $font .uni )
  font=$(basename $font .psfu)
  if setfont $font 2>/dev/null; then
     clear
     echo setfont $font;
     sleep 1
  fi
done

See also