[http://www.rosettacode.org/wiki/Tcl%|%RosettaCode%|%] is a website that collects together tasks on many topics and attempts to construct implementations of those tasks in as many different languages as possible. 
[Tcl]'s examples there are particularly interesting to people learning the language as they illustrate many important techniques beyond those covered in the [tcltutorial%|%tutorials%|%].

Note that this page does not list all examples implemented in Tcl. 
See [http://www.rosettacode.org/wiki/Category:Tcl%|%Tcl's page on RosettaCode%|%] for that.


[PYK] 2015-05-14: Tcl is [http://timb.net/popular-languages.html%|%#1] on Rosetta Code.  Thanks, O̶b̶a̶m̶a̶   [DKF]!

----
**Partial List of Basic Tcl Examples**
   * '''A'''
   ** [http://www.rosettacode.org/wiki/Abstract_type#Tcl%|%Abstract type%|%]
   ** [http://www.rosettacode.org/wiki/Address_Operations#Tcl%|%Address Operations%|%]
   ** [http://www.rosettacode.org/wiki/Apply_a_callback_to_an_Array#Tcl%|%Apply a callback to an Array%|%]
   ** [http://www.rosettacode.org/wiki/Array_Initialization#Tcl%|%Array Initialization%|%]
   ** [http://www.rosettacode.org/wiki/Assertions#Tcl%|%Assertions%|%]
   ** [http://www.rosettacode.org/wiki/Assigning_Values_to_an_Array#Tcl%|%Assigning Values to an Array%|%]
   * '''B'''
   ** [http://www.rosettacode.org/wiki/Basic_input_loop#Tcl%|%Basic input loop%|%]
   ** [http://www.rosettacode.org/wiki/Basic_integer_arithmetic#Tcl%|%Basic integer arithmetic%|%]
   ** [http://www.rosettacode.org/wiki/Basic_pointer_and_reference_operations#Tcl%|%Basic pointer and reference operations%|%]
   ** [http://www.rosettacode.org/wiki/Bitwise_operations#Tcl%|%Bitwise operations%|%]
   * '''C'''
   ** [http://www.rosettacode.org/wiki/Character_code#Tcl%|%Character code%|%]
   ** [http://www.rosettacode.org/wiki/Classes#Tcl%|%Classes%|%]
   ** [http://www.rosettacode.org/wiki/Collections#Tcl%|%Collections%|%]
   ** [http://www.rosettacode.org/wiki/Command_Line_Arguments#Tcl%|%Command Line Arguments%|%]
   ** [http://www.rosettacode.org/wiki/Command_Line_Interpreter#Tcl%|%Command Line Interpreter%|%]
   ** [http://www.rosettacode.org/wiki/Comments#Tcl%|%Comments%|%]
   ** [http://www.rosettacode.org/wiki/Comparing_two integers#Tcl%|%Comparing two integers%|%]
   ** [http://www.rosettacode.org/wiki/Compound_Data_Type#Tcl%|%Compound Data Type%|%]
   ** [http://www.rosettacode.org/wiki/Conditional_Structures#Tcl%|%Conditional Structures%|%]
   ** [http://www.rosettacode.org/wiki/Copy_a_string#Tcl%|%Copy a string%|%]
   ** [http://www.rosettacode.org/wiki/Creating_a_Function#Tcl%|%Creating a Function%|%]
   ** [http://www.rosettacode.org/wiki/Creating_a_Hash_from_Two_Arrays#Tcl%|%Creating a Hash from Two Arrays%|%]
   ** [http://www.rosettacode.org/wiki/Creating_an_Array#Tcl%|%Creating an Array%|%]
   ** [http://www.rosettacode.org/wiki/Creating_an_Associative_Array#Tcl%|%Creating an Associative Array%|%]
   ** [http://rosettacode.org/wiki/Create_an_object/Native_demonstration#Tcl%|%Creating a read-only dictionary%|%]

   * '''D'''
   ** [http://www.rosettacode.org/wiki/Defining_Primitive_Data_Types#Tcl%|%Defining Primitive Data Types%|%]
   * '''E'''
   ** [http://www.rosettacode.org/wiki/Empty_Program#Tcl%|%Empty Program%|%]
   ** [http://www.rosettacode.org/wiki/Enumeration#Tcl%|%Enumeration%|%]
   ** [http://www.rosettacode.org/wiki/Exceptions#Tcl%|%Exceptions%|%]
   * '''F'''
   ** [http://www.rosettacode.org/wiki/File_Creation#Tcl%|%File Creation%|%]
   ** [http://www.rosettacode.org/wiki/File_Delete#Tcl%|%File Delete%|%]
   ** [http://www.rosettacode.org/wiki/File_Exists#Tcl%|%File Exists%|%]
   ** [http://www.rosettacode.org/wiki/File_I/O#Tcl%|%File I/O%|%]
   ** [http://www.rosettacode.org/wiki/File_Modification_Time#Tcl%|%File Modification Time%|%]
   ** [http://www.rosettacode.org/wiki/File_Rename#Tcl%|%File Rename%|%]
   ** [http://www.rosettacode.org/wiki/File_Size#Tcl%|%File Size%|%]
   ** [http://www.rosettacode.org/wiki/Flow_Control_Structures#Tcl%|%Flow Control Structures%|%]
   ** [http://www.rosettacode.org/wiki/Formatted_Numeric_Output#Tcl%|%Formatted Numeric Output%|%]
   ** [http://www.rosettacode.org/wiki/Function_as_an_Argument#Tcl%|%Function as an Argument%|%]
   * '''G'''
   ** [http://www.rosettacode.org/wiki/Generic_swap#Tcl%|%Generic swap%|%]
   * '''I'''
   ** [http://www.rosettacode.org/wiki/Infinity#Tcl%|%Infinity%|%]
   ** [http://www.rosettacode.org/wiki/Inheritance#Tcl%|%Inheritance%|%]
   ** [http://www.rosettacode.org/wiki/Integer_literals#Tcl%|%Integer literals%|%]
   * '''L'''
   ** [http://www.rosettacode.org/wiki/List_Comprehension#Tcl%|%List Comprehension%|%]
   ** [http://www.rosettacode.org/wiki/Logical_operations#Tcl%|%Logical operations%|%]
   ** [http://www.rosettacode.org/wiki/Loop/Break#Tcl%|%Loop/Break%|%]
   ** [http://www.rosettacode.org/wiki/Loop/Continue#Tcl%|%Loop/Continue%|%]
   ** [http://www.rosettacode.org/wiki/Loop/Do_While#Tcl%|%Loop/Do While%|%]
   ** [http://www.rosettacode.org/wiki/Loop/Downward_For#Tcl%|%Loop/Downward For%|%]
   ** [http://www.rosettacode.org/wiki/Loop/For#Tcl%|%Loop/For%|%]
   ** [http://www.rosettacode.org/wiki/Loop/Foreach#Tcl%|%Loop/Foreach%|%]
   ** [http://www.rosettacode.org/wiki/Loop/Infinite#Tcl%|%Loop/Infinite%|%]
   ** [http://www.rosettacode.org/wiki/Loop/Nested#Tcl%|%Loop/Nested%|%]
   ** [http://www.rosettacode.org/wiki/Loop/While#Tcl%|%Loop/While%|%]
   ** [http://www.rosettacode.org/wiki/Loop/n_plus_one_half#Tcl%|%Loop/n plus one half%|%]
   * '''M'''
   ** [http://www.rosettacode.org/wiki/Machine_Address#Tcl%|%Machine Address%|%]
   ** [http://www.rosettacode.org/wiki/Math_constants_and_functions#Tcl%|%Math constants and functions%|%]
   ** [http://www.rosettacode.org/wiki/Memory_Allocation#Tcl%|%Memory Allocation%|%]
   ** [http://www.rosettacode.org/wiki/Multiple_inheritance#Tcl%|%Multiple inheritance%|%]
   * '''N'''
   ** [http://www.rosettacode.org/wiki/Named_Arguments#Tcl%|%Named Arguments%|%]
   ** [http://www.rosettacode.org/wiki/Null#Tcl%|%Null%|%]
   * '''O'''
   ** [http://www.rosettacode.org/wiki/Optional_parameters#Tcl%|%Optional parameters%|%]
   * '''P'''
   ** [http://www.rosettacode.org/wiki/Parametric_Polymorphism#Tcl%|%Parametric Polymorphism%|%]
   ** [http://www.rosettacode.org/wiki/Polymorphism#Tcl%|%Polymorphism%|%]
   ** [http://www.rosettacode.org/wiki/Program_Termination#Tcl%|%Program Termination%|%]
   * '''Q'''
   ** [http://www.rosettacode.org/wiki/Quotes#Tcl%|%Quotes%|%]
   * '''R'''
   ** [http://www.rosettacode.org/wiki/Random_Numbers#Tcl%|%Random Numbers%|%]
   ** [http://www.rosettacode.org/wiki/Retrieving_an_Element_of_an_Array#Tcl%|%Retrieving an Element of an Array%|%]
   * '''S'''
   ** [http://www.rosettacode.org/wiki/Scope_modifiers#Tcl%|%Scope modifiers%|%]
   ** [http://www.rosettacode.org/wiki/Select_from_Array#Tcl%|%Select from Array%|%]
   ** [http://www.rosettacode.org/wiki/Simple_Windowed_Application#Tcl%|%Simple Windowed Application%|%]
   ** [http://www.rosettacode.org/wiki/Simple_concurrent_actions#Tcl%|%Simple concurrent actions%|%]
   ** [http://www.rosettacode.org/wiki/Singly-Linked_List_(traversal)#Tcl%|%Singly-Linked List (traversal)%|%]
   ** [http://www.rosettacode.org/wiki/Sleep_the_Main_Thread#Tcl%|%Sleep the Main Thread%|%]
   ** [http://www.rosettacode.org/wiki/Special_characters#Tcl%|%Special characters%|%]
   ** [http://www.rosettacode.org/wiki/String_concatenation#Tcl%|%String concatenation%|%]
   ** [http://www.rosettacode.org/wiki/String_length#Tcl%|%String length%|%]
   * '''T'''
   ** [http://www.rosettacode.org/wiki/Two-dimensional_array_(runtime)#Tcl%|%Two-dimensional array (runtime)%|%]
   * '''U'''
   ** [http://www.rosettacode.org/wiki/User_Input#Tcl%|%User Input%|%]
   ** [http://www.rosettacode.org/wiki/User_Output_-_graphical#Tcl%|%User Output - graphical%|%]
   ** [http://www.rosettacode.org/wiki/User_Output_-_stderr#Tcl%|%User Output - stderr%|%]
   ** [http://www.rosettacode.org/wiki/User_Output_-_text#Tcl%|%User Output - text%|%]
   * '''V'''
   ** [http://www.rosettacode.org/wiki/Varargs#Tcl%|%Varargs%|%]
   * '''W'''
   ** [http://www.rosettacode.org/wiki/Walk_Directory#Tcl%|%Walk Directory%|%]
   ** [http://www.rosettacode.org/wiki/Walk_Directory_Tree#Tcl%|%Walk Directory Tree%|%]

<<categories>> Example | Tutorial | RosettaCode