NAME

       rename - Rename or delete a command

SYNOPSIS

       rename oldName newName
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DESCRIPTION

       Rename  the  command  that used to be called oldName so that it is now called newName.  If
       newName is an empty string then oldName is  deleted.   oldName  and  newName  may  include
       namespace  qualifiers  (names  of  containing namespaces).  If a command is renamed into a
       different namespace, future invocations of it will execute  in  the  new  namespace.   The
       rename command returns an empty string as result.

EXAMPLE

       The  rename command can be used to wrap the standard Tcl commands with your own monitoring
       machinery.  For example, you might wish to count how often the source command is called:

              rename ::source ::theRealSource
              set sourceCount 0
              proc ::source args {
                  global sourceCount
                  puts "called source for the [incr sourceCount]'th time"
                  uplevel 1 ::theRealSource $args
              }

SEE ALSO

       namespace(3tcl), proc(3tcl)

KEYWORDS

       command, delete, namespace, rename