> For the complete documentation index, see [llms.txt](https://til.yulrizka.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://til.yulrizka.com/osx/checksum-a-file-from-a-url.md).

# checksum a file from a url

```
$ wget -qO- https://github.com/yulrizka/osx-push-to-talk/archive/v0.1.5.tar.gz | sha256sum
```

* q : quiet, disable output log
* O : output to a file
* `-` : stdout

flag is the same as `-q -O /dev/stdout`