Add a sync from the known path to the env (#3335)

crates/nu-engine/src/evaluation_context.rs

@@ -98,6 +98,17 @@ impl EvaluationContext {
         }
     }
 
+    pub fn sync_path_to_env(&self) {
+        let env_vars = self.scope.get_env_vars();
+
+        for (var, val) in env_vars {
+            if var == "PATH" || var == "Path" || var == "path" {
+                std::env::set_var(var, val);
+                break;
+            }
+        }
+    }
+
     #[allow(unused)]
     pub(crate) fn get_command(&self, name: &str) -> Option<Command> {
         self.scope.get_command(name)

crates/nu-engine/src/script.rs

@@ -101,6 +101,7 @@ pub fn process_script(
                     })
                     .unwrap_or("");
 
+                ctx.sync_path_to_env();
                 if internal_name == "run_external"
                     && args
                         .positional