Learn TCL with Real Code Examples
Updated Nov 20, 2025
Learning Path
Learn Tcl syntax & commands
Master procedures & namespaces
Learn Tk for GUI
Use Expect for automation
Embed Tcl in apps (optional)
Skill Improvement Plan
Week 1: Tcl basics
Week 2: File & network scripting
Week 3: Tk GUI building
Week 4: Expect automation & extensions
Interview Questions
Explain Tcl's command syntax.
Difference between list & string in Tcl?
How does Tk manage widgets?
What is the event loop?
How do you embed Tcl in C?
Cheat Sheet
set var value
puts "Hello World"
proc name {args} {body}
if {cond} {body}
button .b -text "Click"
Books
Practical Programming in Tcl/Tk
Tcl and the Tk Toolkit by Ousterhout
Exploring Expect
Tutorials
Tcl Tutorial by TutorialsPoint
Tk GUI Tutorials
Expect automation guides
Official Docs
Tcl/Tk Official Documentation
Tcler's Wiki
Expect User Guide
Community Links
Tcl Wiki
StackOverflow Tcl tag
Tcl/Tk mailing lists
Community Support
Tcler's Wiki
Tcl community mailing lists
Stack Overflow
Tcl/Tk GitHub mirrors
Local Tcl user groups