pass with otp

Need a Microsoft or Google authenticator? No you don't.

These usually come in the form of QR codes.

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Download the code, and get the information out:

1zbarimg qr.png 
2otp="$(zbarimg qr.png | sed 's/QR-Code://')"
3otp_name=site.org.otp
4echo "${otp}" | pass otp add --echo "${otp_name}"

Show the OTP:

1pass otp "${otp_name}"