docs/src/date.md

Sun, 17 Dec 2023 14:25:34 +0100

author
Mike Becker <universe@uap-core.de>
date
Sun, 17 Dec 2023 14:25:34 +0100
changeset 797
edbb20b1438d
parent 285
02d3e4b1245f
permissions
-rw-r--r--

[Makefile] fix missing rules preventing dry-runs

We have to support dry-runs, because many IDEs are using
dry-runs to collect build information.

Some rules have dependencies that expect certain files or
directories to be just present. We added respective build
rules which invoke the test program. This way, the behavior
when running make normally is exactly the same, but dry-runs
are also not failing now.

---
title: 'dav date'
---

**`dav date [url]`**

The purpose of this command is to get the current date from a server and print it to stdout (HTTP date format). This in useful in combination with the **`-u`** option for the `list` and `get` command.

The *url* can be any http url. If no *url* is specified, the local time is used.

### Example: incremental dav get

It is possible to download only resources, which are modified since a specified date. The *date* command allows you to easily store the date of the last *get*.

	$ dav get -R myserv/col/
	...
	$ dav date myserv > last_get
	
After some resources are changed on the server, you can download only the modified files.

	$ dav get -R -u `cat last_get` myserv/col/


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