# Breaking Each Line
It is not at first obvious how to break at each line, rather
than at a function invocation. The trick is to watch `$0`:
```
gawk> watch $0
```
which will pause provided two successive lines are not identical.
The alternative is to introduce a trivial function:
```
function stophere(x) {
  x = 0
}
```
and then include `stophere()` in an action where you want to break.