# Bash Basics

To begin, create a new file with a `.sh` extension. We'll use `shinobi.sh` as our example.

You can create it instantly with `touch`:

```bash
touch shinobi.sh
```

Or, open it directly in your text editor:

```bash
nano shinobi.sh
```

For your script to execute, the very first line must specify the interpreter. This is called the Shebang. While `#!/bin/bash` instructs the operating system to use `/bin/bash`, its location can vary. For wider compatibility, use this:

```bash
#!/usr/bin/env bash
```

This tells the system to find `bash` within your `PATH` environment variable, ensuring your script runs consistently across different systems.