The Windows and Macintosh platforms have a built-in console that is used to enter Tcl commands interactively. You can control this console with the console command. The console is visible by default. Hide the console like this:
Display the console like this:
The console is implemented by a second Tcl interpreter. You can evaluate Tcl commands in that interpreter with:
console eval command
There is an alternate version of this console called TkCon. It is included on the CD-ROM, and you can find current versions on the Internet. TkCon was created by Jeff Hobbs and has lots of nice features. You can use TkCon on Unix systems, too.