diff --git a/git/gitFreqCommand.sh b/git/gitFreqCommand.sh
index 05925f7..fe6e6b8 100644
--- a/git/gitFreqCommand.sh
+++ b/git/gitFreqCommand.sh
@@ -26,6 +26,7 @@ git commit -m "Initial commit"
 ## 删除远程分支
 git push origin :<branch_name>            # v1.5+
 git push origin --delete <branch_name>    # v1.7+
+git branch --delete dev # 删除本地分支
 
 ## 与远端关联
 git remote add origin <remote-git-url>
diff --git a/shell/demo.sh b/shell/demo.sh
index 46e4381..ce04715 100755
--- a/shell/demo.sh
+++ b/shell/demo.sh
@@ -1,5 +1,14 @@
 #!/bin/sh
 
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+DIR="$( cd "$( dirname "$0" )" && pwd )"
+CURRENT_DIR=`pwd`
+
+echo "script dir $SCRIPT_DIR"
+echo "dir $DIR"
+echo "CURRENT_DIR $CURRENT_DIR"
+cd $DIR
+echo "CURRENT_DIR `pwd`"
 echo "parameter $#"
 
 echo "$1"
diff --git a/shell/docker.sh b/shell/docker.sh
index f40f748..b8f144a 100644
--- a/shell/docker.sh
+++ b/shell/docker.sh
@@ -1 +1,27 @@
 # docker 常用命令
+# https://docs.docker.com/engine/reference/run/
+
+# 创建用户自定义网桥
+docker network create codepulse_net
+
+# 将容器加入网桥
+docker network connect codepulse_net codepulse_h5
+
+# 查看自定义bridge网桥信息
+docker network inspect b3e2fa1b291b
+
+# 进入命令行界面
+docker exec -it codepulse_h5 /bin/bash
+
+# 镜像列表
+docker image ls
+
+# 删除镜像
+docker image rm  61e8c95ada51
+
+# 容器列表
+docker container ls -a
+
+
+# 删除容器
+docker container rm
diff --git a/shell/freqCommand.sh b/shell/freqCommand.sh
index d9d8479..4c748c5 100644
--- a/shell/freqCommand.sh
+++ b/shell/freqCommand.sh
@@ -1,6 +1,9 @@
 #!/usr/bin/env bash
 # 常用操作命令
 ############################################
+# 查看系统信息
+uname -a
+
 # grep的或操作，查看当前打开的网络链接
 lsof -i | grep -E "(LISTEN|ESTABLISHED)"
 
@@ -16,12 +19,15 @@ mvn dependency:tree
 # 手动安装jar包到本地
 mvn install:install-file -Dfile=/Users/aborn/Downloads/joda-time-2.9.6.jar -DgroupId=joda-time -DartifactId=joda-time -Dversion=2.9.6 -Dpackaging=jar -DgeneratePom=true
 
-# 检查网络端口监听也可以用(linux only)
+# 检查网络端口监听也可以用(linux only), mac使用 lsof
 sudo netstat -tupln
 
 # mac下查看端口号占用情况，如以下查看端口号20881被占用情况
 # https://stackoverflow.com/questions/4421633/who-is-listening-on-a-given-tcp-port-on-mac-os-x
 sudo lsof -nP -i:20881
+sudo lsof -i -P | grep LISTEN
+# 具体端口
+sudo lsof -i -P | grep LISTEN | grep :$PORT
 
 # grep查找，递归查找关键字 Redis
 grep -r  "Redis" .
@@ -120,3 +126,6 @@ cargo install bat
 # 列出当前源&切换源
 nrm ls
 nrm use
+
+## 软连接，将/opt目录下软件连接到/usr下
+ln -s  /opt/homebrew/bin/ispell /usr/local/bin/ispell
diff --git a/shell/killjava.sh b/shell/killjava.sh
index d586924..612a972 100755
--- a/shell/killjava.sh
+++ b/shell/killjava.sh
@@ -2,3 +2,7 @@
 
 ## 干掉java进程
 sudo kill -9 `ps -ef |grep java|grep -v grep |awk '{print $2}'`
+
+
+## 干掉端口号为 xx的 java程序
+# sudo kill -9 `lsof -nP -i:8060 |grep java|awk '{print $2}'`
diff --git a/shell/powershell.sh b/shell/powershell.sh
new file mode 100644
index 0000000..56eb2c9
--- /dev/null
+++ b/shell/powershell.sh
@@ -0,0 +1,6 @@
+# 查看端口占用情况
+netstat -ano
+netstat -aon|findstr "2008"
+
+# 查看指定 PID 的进程
+tasklist|findstr "8912"
diff --git a/shell/reboot-hui.sh b/shell/reboot-hui.sh
new file mode 100755
index 0000000..8a781fc
--- /dev/null
+++ b/shell/reboot-hui.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+## 干掉端口号为 xx的 java程序
+# sudo kill -9 `lsof -nP -i:8060 |grep java|awk '{print $2}'`
+
+sudo kill -9 `lsof -nP -i:8010 |grep java|awk '{print $2}'`
+sudo kill -9 `lsof -nP -i:8081 |grep java|awk '{print $2}'`
+sudo kill -9 `lsof -nP -i:8082 |grep java|awk '{print $2}'`
+sudo kill -9 `lsof -nP -i:8086 |grep java|awk '{print $2}'`
+sudo kill -9 `lsof -nP -i:8088 |grep java|awk '{print $2}'`
diff --git a/shell/run-nacos.sh b/shell/run-nacos.sh
new file mode 100755
index 0000000..408b3b0
--- /dev/null
+++ b/shell/run-nacos.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# 启动 nacos
+cd /Users/aborn/software/nacos/bin
+export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_351.jdk/Contents/Home
+sh startup.sh -m standalone
diff --git a/sql/sql_examples.sql b/sql/sql_examples.sql
index a6fb4b8..a0fb4ae 100644
--- a/sql/sql_examples.sql
+++ b/sql/sql_examples.sql
@@ -21,8 +21,16 @@ insert into temp values("gr", 108333, "goooogle");
 # 查询表中某个字段(eleName)是否重复行
 select * from <table-name> where a="avalue" group by `eleName` having count(eleName)<>1
 
+# 按app进行分组统计金额
+SELECT app as 平台, sum(total_amount) as 金额 FROM order WHERE uid=2216620 and state='PAYED' GROUP BY app;
+
+
 # 查询某个字段不重复的记录
 select distinct domainKey from MetaInfo;
 
 # 修改字段长度 (修改表user中字段name的长度为50)
 alter table user modify column name varchar(50);
+
+
+# 更新字段为null的值为新值
+update mp_markdown_meta set post_time='1970-01-01 00:00:00' where isnull(post_time) ;