In Tcl, a procedure is a [routine] that can be named by the first word in a
[command].  [proc] creates a new procedure, and so do the [C] functions
`Tcl_CreateObjCommand()` and friends. `[info commands]` provides a list of
available procedures, and `[info procs]` provides a list of available
procedures that were created by `[proc].`



** Description **


[RS]: A procedure is a [script] with an argument list (in other words, a [lambda]) bound to a [command] name, by which it can be called. The arguments make the initial set of local variables, to which you might add others. All of these will be removed on leaving the procedure. See [global] or [variable] or [upvar] on how to "import" variables from upper scopes. In [Tcl], procedures are defined with the [proc] command, for example:

======
proc myproc {arg1 arg2} {
    # do something here, e.g.
    puts arg1:$arg1,arg2:$arg2
}
======

Each procedure returns a result, which means tht in Tcl, every procedure is
also a function.  If there is no explicit `[return]`, then the result of the
last command is the result of the procedure.

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