9b1e4b4632
Similar to how --trace and --trace-ascii already do it. Added test 1489 to verify Closes #13992
33 lines
928 B
Markdown
33 lines
928 B
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Long: dump-header
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Short: D
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Arg: <filename>
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Help: Write the received headers to <filename>
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Protocols: HTTP FTP
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Category: http ftp
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Added: 5.7
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Multi: single
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See-also:
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- output
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Example:
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- --dump-header store.txt $URL
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- --dump-header - $URL -o save
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---
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# `--dump-header`
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Write the received protocol headers to the specified file. If no headers are
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received, the use of this option creates an empty file. Specify `-` as
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filename (a single minus) to have it written to stdout.
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Starting in curl 8.10.0, specify `%` (a single percent sign) as filename
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writes the output to stderr.
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When used in FTP, the FTP server response lines are considered being "headers"
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and thus are saved there.
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Having multiple transfers in one set of operations (i.e. the URLs in one
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--next clause), appends them to the same file, separated by a blank line.
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