More details: Unicode, Framebuffer. I tried to press Esc and then what should follow, letters or brackets, but seems not to work. Probably i do something wrong. If somebody is familiar with escape sequences in the console, how do you do that?
Thanks in advance.

Is this you are expecting.

ESC (0x1B, ^[) starts an escape sequence;

For more details visit the following link
console_codes(4) - Linux man page

and also refer the man page of console_codes.

To type the control character in the terminal try the following way.

press ctrl+v and ctrl+k to achieve ^K ( crtl+k) .Like this you can generate any control characters with the combination of crtl+v.

Please tell which console you are using.

karthigayan , it seems to be beginnig of the right way. The sequence is shown as beginning with "^[", which means Escape, however, i get the message "command not found". Do i have to write own terminfo or something like that to enable terminal to work with Escape sequences?
abubacker: Linux tty (with framebuffer, if it is of essence), TERM=linux.