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10.41.2.4 What We Have Left Out

We have left out a number of Tcl commands as they are outside of the scope of this tutorial. We list some of them here to show some of what Tcl can do. Please refer to the Tcl manual for more information.

http

implements the HTTP protocol for retrieving web pages

namespaces

a modules systems for Tcl

trace

commands can be attached to variables that are triggered when the variable changes value (amongst other things)

processes

start, stop, and manage processes

sockets

UNIX and Internet style socket management

exception handling
3rd party extension packages

load extension packages into Tcl and use their facilities as native Tcl commands


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