Hi every one, here is my problem:
my X doesn't work and i do things in cli, when i'm trying to bring up my wireless card , its driver start send all its messages to all vt's\tty's in the same time, i suppose it's normal but it doesn't let me type another commands....
I know the proper way to redirect command output , but apparently this is not the case....
i would be happy if someone gave me tips how to deal with CLI without X in particular situation and in general..

THANKS

man 8 dmesg

If it's the driver that's printing the messages, then they're probably coming from the kernel. You shouldn't lose your shell unless the system panics or something disastrous like that happens. But you will lose your prompt when a message from the kernel gets written to the screen (because the shell isn't aware that something else wrote a message to the terminal, the shell doesn't know that it has to re-print the prompt). If hitting enter a few times doesn't get your prompt back, something else is wrong. Maybe the program you're running to enable the wireless device is actually hanging, so the shell never gets to continue execution. In Linux, I don't know; but in BSD only one VT (called the "console") actually gets kernel messages, while the rest stay clean. If the problem is that kernel messages get written to all VTs, there's probably some way you can change that in your system's terminal configuration file. For a guess, it's /etc/ttys on BSD.

Thank you man for such a detailed response. I'm going to dig in the direction you gave me.