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Add touch ID as valid authentication for sudo on macOS
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| awk '!/^#/ && !p { print "auth sufficient pam_tid.so"; p=1 }1' /etc/pam.d/sudo \ | |
| | tee ./temp-pamd \ | |
| && read \ | |
| && sudo mv ./temp-pamd /etc/pam.d/sudo | |
| && rm ./temp-pamd |
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Simply copy it and run in a shell. It re-writes the
/etc/pam.d/sudofile using awk, but prints the new content and waits for user to review it. If you press enter, it will actually change/etc/pam.d/sudowith the new content, or press Ctrl+C to make it exit before changing.Awk explanation:
!/^#/: Matches lines that do not start with #.!p: Ensures that the line has not been previously printed.print "auth sufficient pam_tid.so": Prints the required line before any non-comment line.p=1: This is set after the first non-comment line is encountered, ensuring the line is only printed once.1: Is AWK shorthand for print the line. This happens for every line, ensuring all lines (modified and not) are printed.