更新 '_posts/Linux.md'

_posts/Linux.md

@@ -1,6 +1,6 @@
 ---
 title: linux 常用命令
-cover: http://t7.baidu.com/it/u=29611405,3516749616&fm=193
+cover: https://static.jqwei.com/blog/img/text/5.png
 date: 2020-06-14
 tags: Linux
 ---