Clever use of curl command

curl Introduce ：

curl Is based on URL Syntax is a file transfer tool that works on the command line , It supports FTP,FTPS,HTTP,HTTPS,GOPHER,TELNET,DICT,FILE And LDAP Such agreement .curl Support HTTPS authentication , And support HTTP Of POST,PUT Other methods ,FTP Upload ,kerberos authentication ,HTTP Upload , proxy server ,cookies, user name / Password authentication , adopt http The proxy server uploads files to FTP Servers and so on , Very powerful . This article mainly shares some common scenarios ：

curl Common parameters ：

-I Display request header information only

-d HTTP POST Way to transmit data , With json Format

-o Write the output to this file

-s silent mode . Don't export anything

-X What order to give , Such as GET POST

-v Check the details

-u Set the user and password of the server

-H The custom request header to be sent to the server

-w What to output when finished

-b Read from file cookie Information

-F Upload files

-# Show progress bar

No 1：curl Command send get request

Example ：curl -X GET http://www.xxx.com/search?data=123

No 2：curl Command send get Count the time consumption of each stage after the request

curl -o /dev/null -s -w "time_namelookup:%{time_namelookup}\ntime_connect: %{time_connect}\ntime_starttransfer: %{time_starttransfer}\ntime_total: %{time_total}\n" www.xxx.com

No 3：curl Command send post request

curl www.xxx.com/api/openservice/query/queryProperty -H "Content-Type:application/json" -X POST -d '{"baseCondition": {"propertyId": 1, "dateRange": {"fromDate": "2019-07-04", "toDate": "2019-07-05"}, "adults": 1,"children": 0, "rooms": 1, "channelId": 2, "sellCategories": ["PUBLIC", "NEGOTIATE"]},"extensionCondition": {"rateIds": [], "unableFlag":"False", "currency": "CNY"}, "context": {}}'

No 4：curl Command send post Count the time consumption of each stage after the request

curl -o /dev/null -s -w "time_namelookup:%{time_namelookup}\ntime_connect: %{time_connect}\ntime_starttransfer: %{time_starttransfer}\ntime_total: %{time_total}\n" www.xxx.com/api/openservice/query/queryProperty -H "Content-Type:application/json" -X POST -d '{"baseCondition": {"propertyId": 1, "dateRange": {"fromDate": "2019-07-04", "toDate": "2019-07-05"}, "adults": 1,"children": 0, "rooms": 1, "channelId": 2, "sellCategories": ["PUBLIC", "NEGOTIATE"]},"extensionCondition": {"rateIds": [], "unableFlag":"False", "currency": "CNY"}, "context": {}}'

No 5：curl Command to save the file locally

curl -o file.html http://www.xxx.com/index.html

No 6：curl Command login service

curl -u name:passwd http://www.xxx.com

No 7：curl Command constructs a request header

curl -H "Content-Type:application/json" http://www.xxx.com

No 8：curl Command reads from the file cookie Information

curl -b "cookie.txt" http://www.xxx.com

No 9：curl Command upload file

curl -b "cookie.txt" -F "[email protected]/temp/a.txt" http://www.xxx.com/api/upload -v

No 10：curl Command to download the file and display the download progress

curl -# -o abc.jpg http://www.xxx.com/abc.JPG

No 11：curl Order clear es The data in it

curl -XDELETE http://10.8.102.102:9200/entity-beta-ars6_ars-reservation -uadmin:admin # clear ES