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When to use man curl or curl-d switch?


Asked by Robin Gates on Dec 01, 2021 FAQ



Whenever your have a doubt use man. Issue man curl and read about -d switch. -d, --data <data> (HTTP) Sends the specified data in a POST request to the HTTP cause curl to pass the data to the server using the content-type -d, --data is the same as --data-ascii. --data-raw is almost the ter.
Keeping this in consideration,
What is cURL command? cURL is an ideal tool for interacting with a website or API, sending requests, and displaying the responses to the terminal or logging the data to a file. Sometimes you may use it as part of a larger script, handing off the data to other functions for further processing.
In addition, curl is a tool to transfer data from or to a server, using one of the supported protocols (DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP). The command is designed to work without user interaction.
Just so,
Curl transfers data from or to a server, using one of the protocols: HTTP, HTTPS, FTP, FTPS, SCP, SFTP, TFTP, DICT, TELNET, LDAP or FILE. (To transfer multiple files use wget or FTP.).
Indeed,
Using cURL to test whether a server is available. You can use cURL to test whether a server is available. In this regard, the way cURL works is similar to the ping command. However, cURL is more versatile due to the number of protocols and options available.