Collections of Tcl commands are kept in libraries and organized into packages. Tcl automatically loads libraries as an application uses their commands. Tcl commands discussed are:
Libraries group useful sets of Tcl procedures so that they can be used by multiple applications. For example, you could use any of the code examples that come with this book by creating a script library and then directing your application to check in that library for missing procedures. One way to structure a large application is to have a short main script and a library of support scripts. The advantage of this approach is that not all the Tcl code needs to be ...