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Tcl Internal State

Most of the Tcl internal data is available to the programs, i.e. metaprogramming is possible and easy. The command info   and others return various data reflecting the internal state. Some of the available commands are:

info   commands
Returns the list of all commands defined in this interpreter.

info   exists varName
  Returns 1 if the variable with the given name exists, i.e. if it has a value.

info   globals
Returns a list of all defined global variables.

info   script
Returns the file name if a file script is being evaluated.

time   script ?count?
Execute the script count times (default 1) and return the time in microseconds per iteration.



Micha Meier
Tue Jul 2 09:49:39 MET DST 1996