From `curl --help all` we find
```plaintext
 -b, --cookie <data|filename> Send cookies from string/file
 -c, --cookie-jar <filename> Write cookies to <filename> after operation
```
so `-b` is used to send cookies, and `-c` is used to get cookies.

```bash
curl -c cookies.txt pt2a.bonhommer.com/network
curl -b cookies.txt pt2a.bonhommer.com/network
```