Shell Programming: Conditional Statements
Whenever a script needs to do "if the file exists, do something," "only continue if the command succeeds," or "warn the user if the argument is empty," conditional statements come into play. They let scripts go beyond sequential execution and make choices based on the current environment.
This material helps you connect if, test expressions, and common conditional scenarios. You'll use this frequently when writing installation scripts, check scripts, and batch processing scripts later.