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-rw-r--r--trunk/bin/irb20
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diff --git a/trunk/bin/irb b/trunk/bin/irb
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index 0000000000..b31b43eb7f
--- /dev/null
+++ b/trunk/bin/irb
@@ -0,0 +1,20 @@
+#!/usr/bin/env ruby
+#
+# irb.rb - interactive ruby
+# $Release Version: 0.9.5 $
+# $Revision$
+# by Keiju ISHITSUKA(keiju@ruby-lang.org)
+#
+
+require "irb"
+
+if __FILE__ == $0
+ IRB.start(__FILE__)
+else
+ # check -e option
+ if /^-e$/ =~ $0
+ IRB.start(__FILE__)
+ else
+ IRB.setup(__FILE__)
+ end
+end