Updates chapter1.md

Auto commit by GitBook Editor

Updates chapter1.md
Auto commit by GitBook Editor
徐烜
1 parent 3e42b6f2
Showing 1 changed file with 2 additions and 0 deletions
chapter1.md
@@ -12,5 +12,7 @@ cat /proc/version
 cat /etc/centos-release
  
 //---------- 2、linux时间同步 ----------//
+// 查看是否安装了chrony
+rpm -qa|grep chrony
  
 ```