From 5b8e52ff69f338c9749ab871e1569e3292310f15 Mon Sep 17 00:00:00 2001
From: Chris Qi <chris.qi@aciworldwide.com>
Date: Sun, 8 Nov 2020 15:42:29 +0000
Subject: [PATCH] Small content update

---
 docs/notes/Java 基础.md | 2 +-
 docs/notes/Java 并发.md | 1 +
 docs/notes/Linux.md     | 5 +++++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/docs/notes/Java 基础.md b/docs/notes/Java 基础.md
index ec6bee09..f8797cbf 100644
--- a/docs/notes/Java 基础.md	
+++ b/docs/notes/Java 基础.md	
@@ -1429,7 +1429,7 @@ public class Box<T> {
 }
 ```
 
-- [Java 泛型详解](http://www.importnew.com/24029.html)
+- [Java 泛型详解](https://www.cnblogs.com/Blue-Keroro/p/8875898.html)
 - [10 道 Java 泛型面试题](https://cloud.tencent.com/developer/article/1033693)
 
 # 十、注解
diff --git a/docs/notes/Java 并发.md b/docs/notes/Java 并发.md
index 9bdcbb8f..d4aad2d0 100644
--- a/docs/notes/Java 并发.md	
+++ b/docs/notes/Java 并发.md	
@@ -611,6 +611,7 @@ public static void main(String[] args) {
     WaitNotifyExample example = new WaitNotifyExample();
     executorService.execute(() -> example.after());
     executorService.execute(() -> example.before());
+    executorService.shutdown();
 }
 ```
 
diff --git a/docs/notes/Linux.md b/docs/notes/Linux.md
index b94740e7..56e8220a 100644
--- a/docs/notes/Linux.md
+++ b/docs/notes/Linux.md
@@ -1075,6 +1075,11 @@ dmtsai tty1 Fri May 29 11:55 - 12:11 (00:15)
 
 ```html
 $ last -n 5 | awk '{print $1 "\t" $3}'
+dmtsai   192.168.1.100
+dmtsai   192.168.1.100
+dmtsai   192.168.1.100
+dmtsai   192.168.1.100
+dmtsai   Fri
 ```
 
 可以根据字段的某些条件进行匹配，例如匹配字段小于某个值的那一行数据。