From 0ff9cc679ebaa4a423cf304cbfe33d80556a99ff Mon Sep 17 00:00:00 2001
From: Darren Schroeder <343840+fdncred@users.noreply.github.com>
Date: Sat, 12 Mar 2022 10:54:59 -0600
Subject: [PATCH] add `$nu.pid` (#4828)

---
 crates/nu-engine/src/eval.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/crates/nu-engine/src/eval.rs b/crates/nu-engine/src/eval.rs
index 4a33b6d3a..9f9ffe78c 100644
--- a/crates/nu-engine/src/eval.rs
+++ b/crates/nu-engine/src/eval.rs
@@ -1147,6 +1147,10 @@ pub fn eval_variable(
                 })
             }
 
+            let pid = std::process::id();
+            output_cols.push("pid".into());
+            output_vals.push(Value::int(pid as i64, span));
+
             Ok(Value::Record {
                 cols: output_cols,
                 vals: output_vals,