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This question already has an answer here:

Is there any bash command or technique through which we can enter in password alongwith the command which requires the password of superuser? for e.g

sudo apt-get install kde <password>

I am actually using it to pass it in a c program which takes in bash command and prints out the output.

marked as duplicate by Eric Carvalho, Rafał Cieślak, Florian Diesch, Seth, user76204 Feb 24 '13 at 18:42

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I sorted it out finally

echo <mypassword> | sudo -S apt-get install <package name>
  • In general it is not recommended to work this way. Your password will be visible in your shell history and also in the proc filesystem. Other users might read it out. – qbi Feb 24 '13 at 15:15

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