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+======Synopsis:======
+[[set]] debug [<level>]
+======Description:======
+When turned on, this variable enables various degrees of debugging
+while the client is running.  It is useful for seeing precisely where
+a particular alias or function is failing, what variables are being
+assigned what values, etc.  There are three general classes of debug
+output, each assigned a unique number.
+^ Bit ^ Value ^                      Purpose                         ^
+|  0  |   1   | displays all commands executed, including aliases    |
+|  1  |   2   | displays all actual alias and variable substitutions |
+|  2  |   4   | displays all function calls and their return values  |
+Multiple classes may be displayed at once by adding the desired
+values together.  A setting of 0 (zero) turns off debugging.
+======Examples:======
+To show all commands executed and alias expansion:
+	/set debug 3
+To show everything:
+	/set debug 7
+======Other Notes:======
+This command can generate a lot of output, so setting [[window hold_mode|HOLD_MODE]] on is
+recommended.