1--- 2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3SPDX-License-Identifier: curl 4Long: dump-header 5Short: D 6Arg: <filename> 7Help: Write the received headers to <filename> 8Protocols: HTTP FTP 9Category: http ftp 10Added: 5.7 11Multi: single 12See-also: 13 - output 14Example: 15 - --dump-header store.txt $URL 16 - --dump-header - $URL -o save 17--- 18 19# `--dump-header` 20 21Write the received protocol headers to the specified file. If no headers are 22received, the use of this option creates an empty file. Specify `-` as 23filename (a single minus) to have it written to stdout. 24 25Starting in curl 8.10.0, specify `%` (a single percent sign) as filename 26writes the output to stderr. 27 28When used in FTP, the FTP server response lines are considered being "headers" 29and thus are saved there. 30 31Starting in curl 8.11.0, using the --create-dirs option can also create 32missing directory components for the path provided in --dump-header. 33 34Having multiple transfers in one set of operations (i.e. the URLs in one 35--next clause), appends them to the same file, separated by a blank line. 36
