[RFE] color man-pages, bash history, clear console

Lennart Poettering mzerqung at 0pointer.de
Mon Jun 18 17:06:40 UTC 2012

On Wed, 13.06.12 15:00, Petr Pisar (ppisar at redhat.com) wrote:

> On 2012-06-13, Xose Vazquez Perez <xose.vazquez at gmail.com> wrote:
> >
> >== https://bugzilla.redhat.com/815790 ==
> > clear_console: New helper program to clear the *console*,
> > including the _scrollback buffer_.
> >
> >
> > clear_console  clears  your console if this is possible.  It looks in
> > the environment for the terminal type and then in the terminfo
> > database to figure out how to clear the screen. To clear the buffer,
> > it then changes the foreground  virtual  terminal  to another
> > terminal and then back to the original terminal.
> >
> I added new escape sequence into Linux to clear the scroll-back buffer
> directly. I think enhancing `clear' utility is the right option.

BTW, as a side note, systemd makes use of the new escape sequence before
and after running gettys. That means on systemd systems output of the
previous users is not leaked to you and your data not leaked to the next one
using the tty.


Lennart Poettering - Red Hat, Inc.

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