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[`uname`](https://www.gnu.org/software/coreutils/manual/html_node/uname-invocation.html), short for Unix Name, is part of GNU coreutils, and thus very likely already installed:

```commandline
$ uname --kernel-release                                                                     
6.13.3-arch1-1
```

It has some other potentially interesting flags too. Go and have a look at the docs.