linux进阶命令

1 curl命令

文件上传下载命令，综合传输工具

支持 DICT 、FILE、FTP、FTPS、HTTP、HTTPS、IMAP命令

不能交互

 

代理

curl –x 127.0.0.1:8888 https://www.baidu.com

 

get:发送get请求

-G:使用get请求

-d:指定请求数据

curl https://www.baidu.com

curl –G https://www.baidu.com

curl –X GET https/www.baidu.com

 

post

-d:指定post请求体

curl –d ‘login=1234’ https://www.baidu.com

 

 

 

curl –X POST https://www.baidu.com

 

other

保存响应内容

curl –o tmp.html https://www.baidu.com

输出通信的整个过程

curl –v https://www.baidu.com

 

 

 

不输出错误和进度信息

curl –s https://www.baidu.com

 

jq

jq是一个过滤器

安装：yum install -y jq

使用

. 格式优化

 echo '{"a": [{"aa":11,"ab":"bc","ad":22}, {"ae":12,"af":"bd","ag":35}],"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}'| jq '.'

内容提取

echo '{"a": [{"aa":11,"ab":"bc","ad":22}, {"ae":12,"af":"bd","ag":35}],"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}' | jq  .a

从数组中提取所有数据

echo '{"a": [{"aa":11,"ab":"bc","ad":22}, {"ae":12,"af":"bd","ag":35}],"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}'  | jq '.[]'

从数组中提取单个数据

echo '[{"aa":11,"ab":"bc","ad":22},{"ae": 12,"af":"bd","ag":35},{"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}]' | jq '.[0]'

 

过滤多个值

echo '[{"aa":11,"ab":"bc","ad":22},{"ae": 12,"af":"bd","ag":35},{"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}]' | jp '.[0,1]'

数据重组成数组

echo ‘{“a”:1,”b”:2,“c”:3,”d”:4}’ | jq ‘[.a,.b]’

数据重组成对象

echo ‘{“a”:1,”b”:2,“c”:3,”d”:4}’ | jq ‘{“tmp”:.b}’

 

 

 输出指定元素

echo '{"a": [{"aa":11,"ab":"bc","ad":22}, {"ae":12,"af":"bd","ag":35}],"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}'  | jq  .a | jq '.[0] | {aa:.aa}'

echo '{"a": [{"aa":11,"ab":"bc","ad":22}, {"ae":12,"af":"bd","ag":35}],"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}'  | jq  .a | jq '.[0] | {aa:.ab}'

 

 

 取出单个值

echo '{"a": [{"aa":11,"ab":"bc","ad":22}, {"ae":12,"af":"bd","ag":35}],"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}'  | jq  .a | jq '.[0] |.aa'

输出数组

echo '{"a": [{"aa":11,"ab":"bc","ad":22}, {"ae":12,"af":"bd","ag":35}],"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}'  | jq  .a | jq '[.[0] ]'

 

 

 修改keys

echo '{"a": [{"aa":11,"ab":"bc","ad":22}, {"ae":12,"af":"bd","ag":35}],"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}'  | jq  .a | jq '.[0] |{ms_doc:.aa} '

 

 

取出keys值 

echo '{"a": [{"aa":11,"ab":"bc","ad":22}, {"ae":12,"af":"bd","ag":35}],"b": [{"ba":123,"bc":"abc","bd":46}, {"be":"hello","bf":76,"bg":"cc"}]}'  | jq  .a | jq '.[0] | [.[]]'