From 94a72ae217694bfbb290b17f47ae0e063bff7aaa Mon Sep 17 00:00:00 2001
From: Jordan Harband <ljharb@gmail.com>
Date: Tue, 8 Oct 2019 14:40:17 -0700
Subject: [PATCH] [Fix] `nvm use`: improve help output with bare `nvm use` and
 no `.nvmrc`

Closes #1914.
---
 nvm.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nvm.sh b/nvm.sh
index 84a9dfd..221efc6 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -2909,6 +2909,10 @@ nvm() {
           VERSION="$(nvm_version "${PROVIDED_VERSION}")"
         fi
         unset NVM_RC_VERSION
+        if [ -z "${VERSION}" ]; then
+          nvm_err 'Please see `nvm --help` or https://github.com/nvm-sh/nvm#nvmrc for more information.'
+          return 127
+        fi
       else
         VERSION="$(nvm_match_version "${PROVIDED_VERSION}")"
       fi