### Perl Function Call Example

Source: https://github.com/koknat/callgraph/blob/main/README.md

This Perl snippet illustrates basic function definitions and a nested function call (funcB called from funcA) within an if block, demonstrating the type of code the call graph algorithm processes.

```Perl
sub funcA {
    ...
    if ($x) {
        print($y);
        funcB($y);
    }
    ...
}
sub funcB {
    ...
}
```

--------------------------------

### Basic callGraph Command Syntax (Shell)

Source: https://github.com/koknat/callgraph/blob/main/README.md

Shows the fundamental command-line structure for using the 'callGraph' tool. Replace <files> with the source file(s) to analyze and <options> with desired command-line flags.

```shell
callGraph  <files>  <options>
```

--------------------------------

### Including Dependent Modules in callGraph (Shell)

Source: https://github.com/koknat/callgraph/blob/main/README.md

Demonstrates how to explicitly list helper modules or dependent files on the command line alongside the main script. This ensures functions within these modules are included in the generated call graph.

```shell
callGraph script.pl path/moduleA.pm path/moduleB.pm
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.