cURL Tutorial

created: 2023/1/23

 

cURL basic usage
	curl <url>
Downloading Files with cURL
-o, --output <file>	curl -o vlc.dmg http://ftp.belnet.be/mirror/videolan/vlc/3.0.4/macosx/vlc-3.0.4.dmg
-O, --remote-name	curl -O http://ftp.belnet.be/mirror/videolan/vlc/3.0.4/macosx/vlc-3.0.4.dmg Bear in mind that when you use the -o or the -O options and a file of the same name exists, cURL will overwrite it.
-C, --continue-at <offset>	curl -O -C - http://ftp.belnet.be/mirror/videolan/vlc/3.0.4/macosx/vlc-3.0.4.dmg Use "-C -" to tell curl to automatically find out where/how to resume the transfer.    Like most other command line tools, you can combine different options together. For example, in the above command, you could combine -O -C - and write it as -OC -
Anatomy of a HTTP request/response
Following redirects with cURL
Viewing response headers with cURL
Viewing request headers and connection details
Silencing errors
Setting HTTP request headers with cURL
Making POST requests with cURL
Submitting JSON data with cURL
Changing the request method
Replicating browser requests with cURL
Making cURL fail on HTTP errors
Making authenticated requests with cURL
Testing protocol support with cURL
Setting the Host header and cURL’s --resolve option
Resolve domains to IPv4 and IPv6 addresses
Disabling cURL’s certificate checks
Troubleshooting website issues with “cURL timing breakdown”
cURL configuration files
Conclusion