The -b option in Curl is used for sending cookies from a file or from a string.
Curl is a command-line tool used for transferring data using various network protocols. The -b option, also known as the --cookie option, is used to send cookies to the server.
The -b flag can be used in two ways:
-b <filename>: This is used to send cookies from a file. The file should be in the Netscape cookie file format.-b <name=data>: This is used to send cookies from a string.
Here is an example of both uses:
curl -b cookies.txt http://example.com
This command will send the cookies stored in the cookies.txt file to the server at http://example.com.
curl -b "name=value" http://example.com
This command will send a cookie with the name name and the value value to the server at http://example.com.
Please note that if you use -b and -c, -b will read cookies and -c will write cookies. If you use -b alone, it will read cookies and write cookies to the same file.
