curl/docs/cmdline-opts/cookie-jar.md

---

c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Short: c Long: cookie-jar Arg: Protocols: HTTP Help: Save cookies to after operation Category: http Added: 7.9 Multi: single See-also:

• cookie Example:
• -c store-here.txt $URL
• -c store-here.txt -b read-these $URL ---

--cookie-jar

Specify to which file you want curl to write all cookies after a completed operation. Curl writes all cookies from its in-memory cookie storage to the given file at the end of operations. Even if no cookies are known, a file is created so that it removes any formerly existing cookies from the file. The file uses the Netscape cookie file format. If you set the filename to a single minus, "-", the cookies are written to stdout.

The file specified with --cookie-jar is only used for output. No cookies are read from the file. To read cookies, use the --cookie option. Both options can specify the same file.

This command line option activates the cookie engine that makes curl record and use cookies. The --cookie option also activates it.

If the cookie jar cannot be created or written to, the whole curl operation does not fail or even report an error clearly. Using --verbose gets a warning displayed, but that is the only visible feedback you get about this possibly lethal situation.