---
name: which
kind: function
lang: go
domain: shell
version: "1.0.0"
purity: pure
signature: "func Which(name string) core.Option[string]"
description: "Busca la ruta de un ejecutable en el PATH del sistema. Devuelve None si no existe."
tags: [shell, path, lookup, pendiente-usar]
uses_functions: []
uses_types: [option_go_core]
returns: [option_go_core]
returns_optional: false
error_type: ""
imports: []
params:
  - name: name
    desc: "nombre del ejecutable a buscar"
output: "Option[string]: Some(ruta_absoluta) o None si no existe"
tested: false
tests: []
test_file_path: ""
file_path: "functions/shell/which.go"
---

## Ejemplo

```go
path := Which("docker")
```

## Notas

Implementacion en devfactory/shell.