Sudo

Macs with Touch ID have the option to authenticate for sudo using Touch ID instead of the default password authentication.

Customization

Manually

This can be enabled manually by editing the relevant PAM file:

sudo vim /etc/pam.d/sudo

Add the following to the top of the list:

auth       sufficient     pam_tid.so

Press esc, then save and exit

:wq!

One-liner

This can also be done as a one-liner by running:

sudo sed -i '' '1a\'$'\n''auth       sufficient     pam_tid.so'$'\n' /etc/pam.d/sudo