File: gawk.info, Node: Function Calling, Next: Return Statement, Prev: Function Example, Up: User-defined 9.2.3 Calling User-Defined Functions ------------------------------------ "Calling a function" means causing the function to run and do its job. A function call is an expression and its value is the value returned by the function. * Menu: * Calling A Function:: Don't use spaces. * Variable Scope:: Controlling variable scope. * Pass By Value/Reference:: Passing parameters. * Function Caveats:: Other points to know about functions.