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Top Forums UNIX for Dummies Questions & Answers 1st post here! directory related question ( // )... Post 23634 by MrOrange on Wednesday 26th of June 2002 10:00:49 AM
Old 06-26-2002
Tools 1st post here! directory related question ( // )...

Hello guys!

Your board is very cool (professional and very great-looking!)

I have some experience with unix but there is something im wondering since this morning when working on a box here...

Here is the cut&paste from the terminal..,

ttstest01:~$ cd /

ttstest01:/$ pwd

ttstest01:/$ ls
boot/ dev/ export/ lib@ mnt/
bla bla bla...

ttstest01:/$ cd //

ttstest01://$ pwd

ttstest01://$ ls
boot/ dev/ export/ lib@ mnt/
bla bla bla...

ttstest01://$ cd ///

ttstest01:/$ uname -a
SunOS ttstest01 5.8 Generic_108529-10 i86pc i386 i86pc

What is causing this (the "//" directory) ?
Test Your Knowledge in Computers #666
Difficulty: Medium
IEEE 802.3 is a working group and a collection of Institute of Electrical and Electronics Engineers (IEEE) standards produced by the working group defining the physical layer and data link layer's media access control (MAC) of wireless Ethernet.
True or False?

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POC-FEC(1)							   User Command 							POC-FEC(1)

poc-fec - send FEC MP3 streams SYNOPSIS
poc-fec [ -s address ] [ -p port ] [ -t ttl ] [ -q ] [ -k fec_k ] [ -n fec_n ] files... DESCRIPTION
poc-fec is a streaming server sending mp3 data using a custom FEC protocol. The streamed MP3 frames are first decomposed in autonomous data units (ADUs). These ADUs are grouped into ADU groups, which are encoded redundantly using a FEC method by Luigi Rizzo. A group of k ADUs is encoded as n data packets. Any k of these n data packets is sufficient to recover the original k ADUs. It sends the files in the order given on the command-line. Use the filename - to stream from standard input. Normally, the FEC protocol is used to stream to multicast groups. OPTIONS
-s address Specify the address to send to (default -p port Specify the port to send to (default 1500). -t ttl Specify the TTL parameter to be set on outgoing parameters (default 1). -q Don't output any information on standard error. -k fec_k Specify the number of ADUs that will be encoded as an ADU group (default 20). -n fec_n Specify the number of packets that the ADU groups will be encoded to (default 25). This number must be greater than the fec_k param- eter. EXAMPLES
poc-fec -s -p 8989 -t 2 -k 16 -n 32 bla.mp3 Send the file bla.mp3 using the RTP RFC fec protocol to the address on port 8989, and set the TTL to 2. MP3 frames of bla.mp3 are converted to ADUs and grouped in ADU groups of 16 ADUs. These 16 ADUs are encoded into 32 packets and streamed. A client will have to receive at least 16 packets to recover the original ADUs. AUTHORS
Manuel Odendahl <>, Florian Wesch <> February 2005 POC-FEC(1)

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