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Editorial Team
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Asked: 2026-05-20T21:39:08+00:00

I have read many tutorials on the internet about the usage of the ‘tr’

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I have read many tutorials on the internet about the usage of the ‘tr’ command.
However, I am not able to understand how to encrypt an email address with a shell script shift the characters using rot13. Can any one give a link or an example?

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1 Answer

  1. Editorial Team

    Not sure exactly how you want to use this, but here’s a basic example to get you started:

    echo 'fooman@example.com' | tr 'A-Za-z' 'N-ZA-Mn-za-m'

    To make it easier, you can alias the tr command in your .bashrc file thusly:

    alias rot13="tr 'A-Za-z' 'N-ZA-Mn-za-m'"

    Now you can just call:

    echo 'fooman@example.com' | rot13
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