--- /dev/null
+#
+# of course stdin can be supplied too. synonyms for 'stdin' include '0' and
+# 0. the other stdio streams have similar shortcuts
+#
+ require 'systemu'
+
+ cat = %q( ruby -e" ARGF.each{|line| puts line} " )
+
+ status = systemu cat, 0=>'the stdin for cat', 1=>stdout=''
+ puts stdout