What happens without quotes around $@?

That's an excellent question! Using $@ without quotes is one of the most common pitfalls in Bash scripting.

When you use $@ (without quotes) instead of "$@" (with quotes), Bash performs something called Word Splitting.

If an argument contains a space, Bash will "break" that single argument into multiple pieces.

Imagine you have this script:

for arg in $@; do  # No quotes!
  echo "Argument: $arg"
done

If you run it like this:

./arguments.sh "Hello World"

With quotes ("$@"): It sees Hello World as one item.
- Output: Argument: Hello World
Without quotes ($@): Bash splits it at the space and thinks you passed two items.
- Output:
```
Argument: Hello
Argument: World
```

Feature	`"$@"` (Quoted)	`$@` (Unquoted)
Integrity	Preserves arguments exactly as they were typed.	Splits arguments if they contain spaces.
Standard	Almost always the preferred way.	Rare; only used if you want Bash to split words.

Labby's Tip: Always wrap your variables in quotes (like "$@") to ensure your script handles user input safely!