Usage: REX <nick|channel> <shell command> [arguments] 
   Redirects the output of a Unix command to a nick or channel. The Unix
   command must be given; if the Unix command doesnt exists, the Unix
   Shell error will be displayed (if any).
ie.     /REX #LiCe uname -a\n
	shows #LiCe the output of the Unix command "uname".

See also: [RE] [epic 5 EXEC]

