Clearing the terminal portably

[DervishD]

    Hi all :))

    I want to clear a terminal more or less 'portably' but without
using curses (that's forced). I must work at least for the TERM
'linux' and it would be great if it works on all linux platforms. The
portability is intended *only* within different linux archs, not
more.

    I currently write 'ESC c' to the terminal and it works (it is the
reset code for a 'linux' TERM), but I wonder if there is a better way.

    Thanks a lot :)
    Raśl