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git-annex-multicast(1)	    General Commands Manual	git-annex-multicast(1)

NAME
       git-annex-multicast - multicast file distribution

SYNOPSIS
       git annex multicast [options]

DESCRIPTION
       Multicast allows	files to be broadcast to multiple receivers, typically
       on a single local network.

       The uftp	program	is used	for multicast.	<http://uftp-multicast.source-
       forge.net/>

OPTIONS
       --gen-address

	      Generates	 a multicast encryption	key and	stores a corresponding
	      multicast	address	to the git-annex branch.

       --send [file]
	      Sends the	specified files	to any receivers whose	multicast  ad-
	      dresses are stored in the	git-annex branch.

	      When  no	files  are specified, all annexed files	in the current
	      directory	and subdirectories are sent.

	      The git-annex-matching-options(1)	can be used to	control	 which
	      files to send. For example:

	       git annex multicast send	. --not	--copies 2

       --receive
	      Receives files from senders whose	multicast addresses are	stored
	      in the git-annex brach.

	      As each file is received,	its filename is	displayed. This	is the
	      filename	that the sender	used; the local	working	tree may use a
	      different	name for the file, or not contain a link to the	file.

	      This command continues running, until it is interrupted  by  you
	      pressing ctrl-c.

	      Note  that  the  configured  annex.diskreserve is	not honored by
	      this command, because uftpd receives the actual files,  and  can
	      receive any size file.

       --uftp-opt=option -Uoption
	      Pass  an	option	on to the uftp/uftpd command. May be specified
	      multiple times.

	      For example, to broadcast	at 50 Mbps:

	       git annex multicast send	-U-R -U50000

EXAMPLE
       Suppose a teacher wants to multicast files to students in a classroom.

       This assumes that the teacher and  students  have  cloned  a  git-annex
       repository,  and	both can push changes to its git-annex branch, or oth-
       erwise push changes to each-other.

       First, the teacher runs git annex multicast  --gen-address;  git	 annex
       sync

       Next,  students	each  run git annex multicast --gen-address; git annex
       sync

       Once all	the students have generated addresses, the  teacher  runs  git
       annex sync once more. (Now the students all have	received the teacher's
       address,	and the	teacher	has received all the student's addresses.)

       Next students each run git annex	multicast --receive

       Finally,	once the students are all listening (ahem), teacher  runs  git
       annex multicast --send

SEE ALSO
       git-annex(1)

       uftp(1)

       uftpd(1)

AUTHOR
       Joey Hess <id@joeyh.name>

							git-annex-multicast(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLE | SEE ALSO | AUTHOR

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