curl/docs/cmdline-opts/no-clobber.md

---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Long: no-clobber
Help: Do not overwrite files that already exist
Category: output
Added: 7.83.0
Multi: boolean
See-also:
  - output
  - remote-name
Example:
  - --no-clobber --output local/dir/file $URL
---

# `--no-clobber`

When used in conjunction with the --output, --remote-header-name,
--remote-name, or --remote-name-all options, curl avoids overwriting files
that already exist. Instead, a dot and a number gets appended to the name of
the file that would be created, up to filename.100 after which it does not
create any file.

Note that this is the negated option name documented. You can thus use
--clobber to enforce the clobbering, even if --remote-header-name is
specified.
docs/cmdline: change to .md for cmdline docs - switch all invidual files documenting command line options into .md, as the documentation is now markdown-looking. - made the parser treat 4-space indents as quotes - switch to building the curl.1 manpage using the "mainpage.idx" file, which lists the files to include to generate it, instead of using the previous page-footer/headers. Also, those files are now also .md ones, using the same format. I gave them underscore prefixes to make them sort separately: _NAME.md, _SYNOPSIS.md, _DESCRIPTION.md, _URL.md, _GLOBBING.md, _VARIABLES.md, _OUTPUT.md, _PROTOCOLS.md, _PROGRESS.md, _VERSION.md, _OPTIONS.md, _FILES.md, _ENVIRONMENT.md, _PROXYPREFIX.md, _EXITCODES.md, _BUGS.md, _AUTHORS.md, _WWW.md, _SEEALSO.md - updated test cases accordingly Closes #12751 2024-01-21 06:18:43 +08:00			`---`
copyright: update all copyright lines and remove year ranges - they are mostly pointless in all major jurisdictions - many big corporations and projects already don't use them - saves us from pointless churn - git keeps history for us - the year range is kept in COPYING checksrc is updated to allow non-year using copyright statements Closes #10205 2023-01-02 20:51:48 +08:00			`c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.`
docs/cmdline-opts: add copyright and license identifier to each file gen.pl now insists on C: and SPDX-License-Identifier: fields to be present in all files. Closes #9002 2022-06-14 06:12:03 +08:00			`SPDX-License-Identifier: curl`
curl: add --no-clobber Does not overwrite output files if they already exist Closes #7708 Co-authored-by: Daniel Stenberg 2021-09-12 12:36:21 +08:00			`Long: no-clobber`
			`Help: Do not overwrite files that already exist`
cmdline-opts: category cleanup Option cleanups: --get is not upload --form* are post - added several options into ldap, smtp, imap and pop3 - shortened the category descriptions in the list category curl fixes: --create-dirs removed from 'curl' --ftp-create-dirs removed from 'curl' --netrc moved to 'auth' from 'curl' --netrc-file moved to 'auth' from 'curl' --netrc-optional moved to 'auth' from 'curl' --no-buffer moved to 'output' from 'curl' --no-clobber removed from 'curl' --output removed from 'curl' --output-dir removed from 'curl' --remove-on-error removed from 'curl' Add a "global" category: - Made all "global" options set this category Add a "deprecated" category: - Moved the deprecated options to it (maybe they should not be in any category long term) Add a 'timeout' category - Put a number of appropriate options in it Add an 'ldap' category - Put the LDAP related option in there Remove categories "ECH" and "ipfs" - They should not be categories. Had only one single option each. Remove category "misc" - It should not be a category as it is impossible to know when to browse it. --use-ascii moved to ftp and output --xattr moved to output --service-name moved to auth Managen fixes: - errors if an option is given a category name that is not already setup for in code - verifies that options set `scope: global` also is put in category `global´ Closes #14101 2024-07-04 19:38:18 +08:00			`Category: output`
curl: add --no-clobber Does not overwrite output files if they already exist Closes #7708 Co-authored-by: Daniel Stenberg 2021-09-12 12:36:21 +08:00			`Added: 7.83.0`
cmdline/docs: add a required 'multi' keyword for each option The keyword specifies how option works when specified multiple times: - single: the last provided value replaces the earlier ones - append: it supports being provided multiple times - boolean: on/off values - mutex: flag-like option that disable anoter flag The 'gen.pl' script then outputs the proper and unified language for each option's multi-use behavior in the generated man page. The multi: header is requires in each .d file and will cause build error if missing or set to an unknown value. Closes #9759 2022-10-18 16:39:43 +08:00			`Multi: boolean`
docs/cmdline: change to .md for cmdline docs - switch all invidual files documenting command line options into .md, as the documentation is now markdown-looking. - made the parser treat 4-space indents as quotes - switch to building the curl.1 manpage using the "mainpage.idx" file, which lists the files to include to generate it, instead of using the previous page-footer/headers. Also, those files are now also .md ones, using the same format. I gave them underscore prefixes to make them sort separately: _NAME.md, _SYNOPSIS.md, _DESCRIPTION.md, _URL.md, _GLOBBING.md, _VARIABLES.md, _OUTPUT.md, _PROTOCOLS.md, _PROGRESS.md, _VERSION.md, _OPTIONS.md, _FILES.md, _ENVIRONMENT.md, _PROXYPREFIX.md, _EXITCODES.md, _BUGS.md, _AUTHORS.md, _WWW.md, _SEEALSO.md - updated test cases accordingly Closes #12751 2024-01-21 06:18:43 +08:00			`See-also:`
			`- output`
			`- remote-name`
			`Example:`
			`- --no-clobber --output local/dir/file $URL`
curl: add --no-clobber Does not overwrite output files if they already exist Closes #7708 Co-authored-by: Daniel Stenberg 2021-09-12 12:36:21 +08:00			`---`
docs/cmdline: change to .md for cmdline docs - switch all invidual files documenting command line options into .md, as the documentation is now markdown-looking. - made the parser treat 4-space indents as quotes - switch to building the curl.1 manpage using the "mainpage.idx" file, which lists the files to include to generate it, instead of using the previous page-footer/headers. Also, those files are now also .md ones, using the same format. I gave them underscore prefixes to make them sort separately: _NAME.md, _SYNOPSIS.md, _DESCRIPTION.md, _URL.md, _GLOBBING.md, _VARIABLES.md, _OUTPUT.md, _PROTOCOLS.md, _PROGRESS.md, _VERSION.md, _OPTIONS.md, _FILES.md, _ENVIRONMENT.md, _PROXYPREFIX.md, _EXITCODES.md, _BUGS.md, _AUTHORS.md, _WWW.md, _SEEALSO.md - updated test cases accordingly Closes #12751 2024-01-21 06:18:43 +08:00
			# `--no-clobber`

curl: add --no-clobber Does not overwrite output files if they already exist Closes #7708 Co-authored-by: Daniel Stenberg 2021-09-12 12:36:21 +08:00			`When used in conjunction with the --output, --remote-header-name,`
			`--remote-name, or --remote-name-all options, curl avoids overwriting files`
cmdline-docs: use present tense, not future + some smaller cleanups Closes #11821 2023-09-08 20:32:29 +08:00			`that already exist. Instead, a dot and a number gets appended to the name of`
			`the file that would be created, up to filename.100 after which it does not`
curl: add --no-clobber Does not overwrite output files if they already exist Closes #7708 Co-authored-by: Daniel Stenberg 2021-09-12 12:36:21 +08:00			`create any file.`

docs/cmdline: change to .md for cmdline docs - switch all invidual files documenting command line options into .md, as the documentation is now markdown-looking. - made the parser treat 4-space indents as quotes - switch to building the curl.1 manpage using the "mainpage.idx" file, which lists the files to include to generate it, instead of using the previous page-footer/headers. Also, those files are now also .md ones, using the same format. I gave them underscore prefixes to make them sort separately: _NAME.md, _SYNOPSIS.md, _DESCRIPTION.md, _URL.md, _GLOBBING.md, _VARIABLES.md, _OUTPUT.md, _PROTOCOLS.md, _PROGRESS.md, _VERSION.md, _OPTIONS.md, _FILES.md, _ENVIRONMENT.md, _PROXYPREFIX.md, _EXITCODES.md, _BUGS.md, _AUTHORS.md, _WWW.md, _SEEALSO.md - updated test cases accordingly Closes #12751 2024-01-21 06:18:43 +08:00			`Note that this is the negated option name documented. You can thus use`
no-clobber.d: only use long form options in man page text ... since they are expanded and the short-form gets mentioned automatically so if the short form is mentioned as well, it gets repeated. Fixes #10461 Closes #10462 Reported-by: Dan Fandrich 2023-02-10 06:09:36 +08:00			`--clobber to enforce the clobbering, even if --remote-header-name is`
curl: add --no-clobber Does not overwrite output files if they already exist Closes #7708 Co-authored-by: Daniel Stenberg 2021-09-12 12:36:21 +08:00			`specified.`