# Discover graphviz

**URL:** <https://forum.graphviz.org/t/discover-graphviz/3154>\
**Category:** Help\
**Created:** [August 17, 2025, 3:27pm UTC](https://forum.graphviz.org/t/discover-graphviz/3154 "2025-08-17T15:27:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![frantzgac](https://avatars.discourse-cdn.com/v4/letter/f/839c29/32.png) [@frantzgac](https://forum.graphviz.org/u/frantzgac)\
**Post date:** [August 17, 2025, 3:27pm UTC](https://forum.graphviz.org/t/discover-graphviz/3154/1 "2025-08-17T15:27:45Z")

</div>

Hello I am trying trivial command in windows command line

```auto
 *echo 'digraph { a -> b }' | dot -Tsvg > output.svg* finded here "https://graphviz.org/doc/info/command.html"

this command build a file named 'b' containing *'digraph { a - }'*

I assume that *>* character is not the good.

Is there some character set require by dot ?

thanks
```

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<div class="post-metadata">

**Author:** ![steveroush](https://avatars.discourse-cdn.com/v4/letter/s/a9adbd/32.png) [@steveroush](https://forum.graphviz.org/u/steveroush)\
**Post date:** [August 17, 2025, 3:41pm UTC](https://forum.graphviz.org/t/discover-graphviz/3154/2 "2025-08-17T15:41:39Z")

</div>

This documentation bug (for Windows users) is discussed here [Graphviz 12.0.0 basic output.svg test not working (#2700) · Issues · graphviz / graphviz · GitLab](https://gitlab.com/graphviz/graphviz/-/issues/2700)

```auto
You encountered a documentation bug. The "echo ..." command works for Linux (and macos?), but not for Windows! (The Windows echo command works differently than the Linux echo)
Try this:
echo graph { a -- b } | dot -Tsvg -o output.svg

```