WPA manual setting

Well the way I do it is, in a terminal:

sudo wpa_passphrase <essid> > /etc/wpa_supplicant.conf (cr)

<passphrase> (cr) will write the passphrase and other stuff to /etc/wpa_supplicant.conf.

sudo wpa_supplicant -Dwext -i<wirelessdevice> -c/etc/wpa_supplicant.conf -B (cr)

sudo dhclient <wireless-device> (cr)

This works on most linux systems.

I am assuming wpa_passphrase, wpa_supplicent and dhclient are available.

wpa_supplicant -Dxxxx (cr) should report the wireless drivers available.

iwconfig (cr) will return the wireless-device name(s). __________________________________________

?? Does this page actually say something?? It is complete gibberish to me. Can someone rewrite it in English? Thanks.