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We have 15 PCs in our network. If there is a big meeting, we want to play a sound (from a file, just some seconds) on all PCs in our network.

Most of them run Ubuntu, some run SuSE.

How can I solve this?

j0h
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guettli
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  • What is the source if this sound? – mbiber Mar 01 '16 at 13:53
  • @mbiber the source is a file on disc on a server. – guettli Mar 01 '16 at 17:01
  • Is it important for them to start at the exact same moment? What is the purpose for this - why play the file on all PCs? – mbiber Mar 01 '16 at 17:43
  • @mbiber a delay of up to 5 seconds is ok. Why play the file: to inform people. – guettli Mar 01 '16 at 19:09
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    Can you SSH into all those PCs? Do they all have access to the network location where the file is stored? Use `play` command to play the file. So something like `ssh user@hostname play /location/of/file.mp3` on each of the PCs. If up to 5 seconds delay is ok then you can simply use for loop to run that command. Something like `for PC in list of hostnames; do ssh user@$PC "play /location/of/file.mp3" &; done` – mbiber Mar 02 '16 at 14:36
  • @mbiber yes, ssh to the hosts could work. Please write this as answer, and I will up-vote it. Thank you. – guettli Mar 03 '16 at 07:21
  • @mbiber Don't forget that `ssh` with password authentication will stop and wait till you enter the password. You need to set key authentication if you wish this script to run seamlessly. – whtyger Mar 04 '16 at 12:52
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    I think your question is not clear enough. It is very case specific but almost you haven't provided detail about it. – Mostafa Ahangarha Mar 04 '16 at 18:37
  • @MostafaAhangarha what details are you missing? What do you want to know? – guettli Mar 05 '16 at 14:59
  • You want to stream a sound or play an audio file? – Mostafa Ahangarha Mar 05 '16 at 15:04
  • @MostafaAhangarha I want to play a simple file from the file system. Just some seconds long. I updated the question. – guettli Mar 05 '16 at 20:13

2 Answers2

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Use play command to play the file. So something like ssh user@hostname play /location/of/file.mp3 on each of the PCs. If up to 5 seconds delay is alright then you can simply use a for loop to run that command from any PC. Something like for PC in list of hostnames; do ssh user@$PC "play /location/of/file.mp3" & done.

Setting up public key authentication will eliminate the need for password inputting for each of the hosts. How can I set up password-less SSH login?

Community
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mbiber
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  • You may want to link to `parallel` to avoid scripting. "a shell tool for executing jobs in parallel using one or more computers": https://www.gnu.org/software/parallel/ – Marcus Mar 10 '16 at 02:41
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I think streaming audio in your network can be a solution for your case.

have a look on this question: How to stream music over the network to multiple computers?

Mostafa Ahangarha
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