From 92355d64e7260f5dff849df0f19c9c6ae0fcf927 Mon Sep 17 00:00:00 2001
From: Zhengmao Zhu <70138133+fenghua1997@users.noreply.github.com>
Date: Thu, 10 Mar 2022 22:32:53 +0800
Subject: [PATCH] Update docs.md (#10690)

apt-cache policy
---
 documentation20/en/02.getting-started/docs.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/documentation20/en/02.getting-started/docs.md b/documentation20/en/02.getting-started/docs.md
index db538f45f7..5608a46489 100644
--- a/documentation20/en/02.getting-started/docs.md
+++ b/documentation20/en/02.getting-started/docs.md
@@ -35,7 +35,7 @@ wget -qO - http://repos.taosdata.com/tdengine.key | sudo apt-key add -
 echo "deb [arch=amd64] http://repos.taosdata.com/tdengine-stable stable main" | sudo tee /etc/apt/sources.list.d/tdengine-stable.list
 [Optional] echo "deb [arch=amd64] http://repos.taosdata.com/tdengine-beta beta main" | sudo tee /etc/apt/sources.list.d/tdengine-beta.list
 sudo apt-get update
-apt-get policy tdengine
+apt-cache policy tdengine
 sudo apt-get install tdengine
 ```
 
-- 
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