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I have passwordless ssh setup between the 2 machines. ssh doesn't prompt for password but pssh does. I cannot run commands which need data piped into pssh as the prompt messes with the input. How to make it not prompt for password ? (By the way I just have to press enter without actually typing password)

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Found the solution on net not long after posting the question.

The solution is:

  1. Install and use sshpass
  2. Use interactive mode to force the password which is just an empty string
  3. Used command cat local | sshpass -ppassword parallel-ssh -I -h new_hosts -l root -A 'cat >> remote'

Original solution at: http://www.getreu.net/public/downloads/doc/Secure_Computer_Cluster_Administration_with_SSH/

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  • Any other answers welcome.
    – user568109
    Commented May 31, 2016 at 22:06

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