Freaks City

Variable Deletion and Replacement Removing Prefix Patterns Removing the shortest matching prefix pattern using #: greeting="Hello World, Welcome to Shell" echo $greeting greeting_clean=${greeting#*or} echo $greeting_clean Removing the longest matching prefix pattern using ##: greeting_long=${greeting##*or} echo $greeting_long String ...

# Basic output statement print("hello world") Python code executes line by line from top to bottom. Execution stops if an error occurs. Constants Constants represent immutable values that remain unchanged during program execution. By convention, they are written in uppercase letters. # Examples of constants A = 10 PI = 3.14159 COMPAN ...

Variables and Data Types Variables A variable name must start with a letter or undercsore, and can only contain letters, digits, and underscores. For instance, message_1 is valid, but 1_message is not. Variable names cannot contain spaces; use underscores to seperate words. greeting_message works, while greeting message causes an error. Avoid ...