# <span class='text-muted'>175.</span> Use an implied do loop with a dummy variable to skip fields when reading a file.

<span style='font-size: small;' class='text-muted'>topic: {ref}`input-and-output`</span>

```{note}
This tip is a draft[^draft].

[^draft]: From the perspective of FortranTip Browser, "draft" means that
  it hasn't been edited for formatting,
  hasn't had corresponding Fortran programs added,
  the text content hasn't been enhanced, etc.
  Draft texts are extracted from the corresponding Tweet using the Twitter API.
```

To skip reading N fields of a space- or comma-delimited file, a dummy variable can be read N times in an implied do loop before the actual  data is read. A READ with no items skips a line in a file.


---

<blockquote class="twitter-tweet"><p lang="en" dir="ltr">To skip reading N fields of a space- or comma-delimited file, a dummy variable can be read N times in an implied do loop before the actual  data is read. A READ with no items skips a line in a file.<a href="https://t.co/KGhVGgiZrW">pic.twitter.com/KGhVGgiZrW</a></p>&mdash; FortranTip (@fortrantip) <a href="https://twitter.com/fortrantip/status/1510212760201830401?ref_src=twsrc%5Etfw">April 2, 2022</a></blockquote><script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>