How to write ISO image to usb memory stick from linux command-line?

I know you can do this in UNetbootin gui.
I haven’t tried it myself, but it looks like you can do it by command-line, as well:

http://sourceforge.net/apps/trac/unetbootin/wiki/commands

unetbootin method=diskimage isofile=”my.iso” installtype=USB targetdrive=/dev/sdc1