## Function: COMMON-LISP:SHADOW
[![package](https://img.shields.io/badge/Package-COMMON--LISP-5f9ea0.svg?style=social&colorA=999999)](../) [![type](https://img.shields.io/badge/Type-Function-5f9ea0.svg?style=social&colorA=999999)](../#function) [![clhs](https://img.shields.io/badge/CLHS-SHADOW-5f9ea0.svg?style=social&colorA=999999)](http://www.lispworks.com/documentation/HyperSpec/Body/f_shadow.htm) [![github](https://img.shields.io/badge/GitHub-View_the_source-5f9ea0.svg?style=social&colorA=999999&logo=github)](https://github.com/sbcl/sbcl/blob/master/src/code/target-package.lisp/) 

> Make an internal symbol in PACKAGE with the same name as each of the
> specified SYMBOLS. If a symbol with the given name is already present in
> PACKAGE, then the existing symbol is placed in the shadowing symbols list if
> it is not already present.

### Lambda list
```cl
(sb-impl::symbols &optional package)
```