查看常用组件版本方法-持续更新

> /Mysql/Redis/elasticsearch/Tenginx/rocketmq/ArangoDB/zookeeper/Nacos/

 - #使用SQL语句查询：
 - >select version();
 - #在命令行查询：
 - mysql -V 或 mysql --version

#Redis语句查询
1.登录Redis:
./redis-cli -h 'ip' -p 6379 -a 'Passwd'
2.输入INFO命令查询，如下图

#命令行查询：
redis-server --version
redis-server -v

方法一
#进入es的安装目录
cd elasticsearch/
#找出es的jar就可以知道版本
[root@10-55-193-2 elasticsearch]$ ls lib/ | grep -P 'elasticsearch-d.d.d.jar'
elasticsearch-6.2.2.jar


方法二
#从回传信息里面找，number
curl -XGET localhost:9200
{
  "name" : "node-26",
  "cluster_name" : "dosm-es",
  "cluster_uuid" : "Sr3dRRQySJKJp-yghkSC1g",
  "version" : {
    "number" : "6.2.2",
    "build_hash" : "10b1edd",
    "build_date" : "2018-02-16T19:01:30.685723Z",
    "build_snapshot" : false,
    "lucene_version" : "7.2.1",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}