caozhi

sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
sudo yum makecache fast
sudo yum -y install docker-ce



## if there's a docker installed, please removed it first.
systemctl stop docker
sudo yum remove docker

caozhi

mvn eclipse:eclipse

-DskipTests，不执行测试用例，但编译测试用例类生成相应的class文件至target/test-classes下。
-Dmaven.test.skip=true，不执行测试用例，也不编译测试用例类。

caozhi

关闭当前finder窗口：command + w 
批量关闭finder窗口:  option + command + w 


https://vim.rtorr.com/lang/zh_cn

caozhi

######## submit codes
# step 1. add changes to staging area
git add fileanme
git add .
git add --all .
git rm fileanme
git mv source dst
# step 2. commit to local repostiroy
git commit -m "comments"

caozhi

########################################################
## nc command
########################################################

## 扫描IP和端口, 查看该ip，端口是否可用
nc -v -z 192.168.0.1 8080

## insecure connection to https
curl -k https://localhost:6443/api