35 lines
1.1 KiB
Markdown
35 lines
1.1 KiB
Markdown
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---
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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: time-cond
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Short: z
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Arg: <time>
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Help: Transfer based on a time condition
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Protocols: HTTP FTP
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Category: http ftp
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Added: 5.8
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Multi: single
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See-also:
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- etag-compare
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- remote-time
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Example:
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- -z "Wed 01 Sep 2021 12:18:00" $URL
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- -z "-Wed 01 Sep 2021 12:18:00" $URL
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- -z file $URL
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---
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# `--time-cond`
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Request a file that has been modified later than the given time and date, or
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one that has been modified before that time. The date expression can be all
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sorts of date strings or if it does not match any internal ones, it is treated
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as a filename and curl tries to get the modification date (mtime) from that
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file instead. See the *curl_getdate(3)* man pages for date expression details.
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Start the date expression with a dash (-) to make it request for a document
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that is older than the given date/time, default is a document that is newer
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than the specified date/time.
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If provided a non-existing file, curl outputs a warning about that fact and
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proceeds to do the transfer without a time condition.
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