Using DSH (Distributed Shell) to Run Linux Commands Across Multiple Machines

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Rob Krul

Rob is an avid user of Linux and Open Source Software, with over 15 years experience in the tech geek universe. Aside from experimenting with the many flavors of Linux, he enjoys working with BSDs, Solaris, and OS X. He currently works as an Independent IT Contractor.

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29 Responses

  1. n2o says:

    The -c command does not mean “command to be executed”. According to the manual, it means “concurrent shell”.

    –concurrent-shell | -c
    Executes shell concurrently.


  2. nakul says:

    If you have 1000 servers, It will ask 1000 times to put yes/no to known hosts and for first time to add ssh-key again it will ask 1000 times for password, then what is the use of this???

    • Ravi Saive says:


      Then you should go for Pscp tool to achieve the same

    • Andrew DeFaria says:

      Well if you set config for ssh to auto accept new known_hosts and establish pre-shared ssh keys then there’s no prompting at all!

    • kai keliikuli says:

      echo “StrictHostKeyChecking no” >> ~/.ssh/config
      and then connect to your thousand servers.
      They’ll end up in known hosts
      and then remove that line from ~/.ssh/config

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