I am using red Hat enterprise Linux 6.3 for Practice . As I Am only using command line terminals. In Command line terminal Font size is very small . Pls tell me how to increase the font size permanently .As I have already tried 'vga=xxx' method.
AFAIK you can't arbitrarily change the font size, however you change it to another font.
List 22pt console fonts
Set font to
Permanetly set the font
(Note: if you want it to show up earlier in boot you need to rebuilt your initrd/initramfs)
Detailed information here: https://wiki.archlinux.org/index.php/Font#Console_fonts
Simply you can add
NOTE: Make sure that vga value is decimal.