zeeshanrafique23 / tcl

This repo contains the basic programs and practice code for tcl beginners.

tcl

This repo holds the basic programs and practice for tcl.

Introduction:

TCL is a short form for a "tickle", it is a scripting language used to make the process easier and fast. You can start using it by typing "tclsh" on your linux or windows powershell terminal.

Set variables and printing it with string

puts : to print the data

puts "hello world";

Result:

hello world

set : to set the variable.

set str "this is str";
puts "$str"; 

Result:

this is str

Example:

set value 1.5; 
puts "the value is $value"; 

Result

 the value is 1.5

Command Interpolation

Command Interpolation means doing task in a single command instead of two sperate commands.
Using [] brackets:

set a 5; 
set b $b; # This will assign the value of b to a 
set b [set a 5]; # Only one command can also do the same job

Using { } bracket:
Use of these curly brackets will print all the text written inside the brackets as it is.

set var 5; 
puts "number $var"; 
puts {number $var};

Result

number 5
number $var

Arithmetic, bitwise and logical operations

Arithmetic, bitwise and logical operations can be done using 'expr' statement.
Example of addition of two integer variables a and b.

set a 4;
set b 6; 
set c [expr "$a + $b"]; 
puts "Addition of a and b is $c";

Result:

Addition of a and b is 10

More in progress