Bug grep

[Burg, G.C.A. van den]

Hi gnu,

I just installed the latest Debian OS, basic system only and am
disovering Linux. So, on a site it said: Also investigate the function
grep. So I typed in : "grep -help" within the linux command line. This
did nothing, except that I went inot a mode where I could only type, but
not quit and go back to the command line. This was very frustrating for
me, and I think it is a bug. Relogging was good enough for me, but I
still would like to now how it comes that I get into a mode where I can
only type, and do nothing else.

Thanks in advance,

Geert