--- ruby-1.8.7-p334/ruby.1	2007-02-12 15:01:19.000000000 -0800
+++ ruby-1.8.7-p334/../ruby.1	2008-02-28 03:00:23.255784000 -0800
@@ -104,8 +104,79 @@
 .Ux
 systems, you can load object files into the Ruby interpreter
 on-the-fly.
+.Pp
+.It Sy "DTrace Probes"
+Ruby has a set of DTrace probes that can be used to debug a running Ruby/Rails
+application. NOTE: This is on x86/x64 platform only.
+.Pp
+.Nm function-entry
+.Nd Probe that fires when a Ruby method is entered
+.Pp
+.Nm function-return
+.Nd Probe that fires when a Ruby method returns
+.Pp
+.Nm raise
+.Nd Probe that fires when a Ruby exception is raised
+.Pp
+.Nm rescue
+.Nd Probe that fires when a Ruby exception is rescued
+.Pp
+.Nm line
+.Nd Probe that fires for every line of Ruby executed
+.Pp
+.Nm gc-begin
+.Nd Probe that fires right before a GC cycle begins
+.Pp
+.Nm gc-end
+.Nd Probe that fires right after a GC cycle finishes
+.Pp
+.Nm object-create-start
+.Nd Probe that fires directly before a Ruby object is allocated
+.Pp
+.Nm object-create-done
+.Nd Probe that fires when Ruby is finished allocating an object
+.Pp
+.Nm object-free
+.Nd Probe that fires every time a Ruby object is freed
+.Pp
+.Nm ruby-probe
+.Nd Probe that can be fired from Ruby code (see below)
+.Pp
+.Sy "Probe Arguments"
 .El
 .Pp
+.Nm function-entry
+.Ar "Ruby class" Ar "Method name" Ar "Source file" Ar "Line number"
+.Pp
+.Nm function-return
+.Ar "Ruby class" Ar "Method name" Ar "Source file" Ar "Line number"
+.Pp
+.Nm raise
+.Ar "Ruby class" Ar "Source file" Ar "Line number"
+.Pp
+.Nm rescue
+.Ar "Source file" Ar "Line number"
+.Pp
+.Nm line
+.Ar "Source file" Ar "Line number"
+.Pp
+.Nm gc-begin
+.Ar ""
+.Pp
+.Nm gc-end
+.Ar ""
+.Pp
+.Nm object-create-start
+.Ar "Ruby type" Ar "Source file" Ar "Line number"
+.Pp
+.Nm object-create-done
+.Ar "Ruby type" Ar "Source file" Ar "Line number"
+.Pp
+.Nm object-free
+.Ar "Ruby type"
+.Nm ruby-probe
+.Ar "Arbitrary string" Ar "Arbitrary string"
+.Pp
 .Sh OPTIONS
 Ruby interpreter accepts following command-line options (switches).
 They are quite similar to those of
@@ -154,9 +225,9 @@
 .Li #!
 on machines that don't support it, in the following manner:
 .Bd -literal -offset indent
-#! /usr/local/bin/ruby
+#! /usr/bin/ruby
 # This line makes the next one a comment in Ruby \e
-  exec /usr/local/bin/ruby -S $0 $*
+  exec /usr/bin/ruby -S $0 $*
 .Ed
 .Pp
 .It Fl T Ns Op Ar level
@@ -251,7 +322,7 @@
 .Li ARGV
 and set the corresponding variable in the script.  For example:
 .Bd -literal -offset indent
-#! /usr/local/bin/ruby -s
+#! /usr/bin/ruby -s
 # prints "true" if invoked with `-xyz' switch.
 print "true\en" if $xyz
 .Ed
@@ -349,3 +420,5 @@
 .Sh AUTHORS
 Ruby is designed and implemented by
 .An Yukihiro Matsumoto Aq [email protected] .
+.Sh SEE ALSO
+.Nm gem(1)