Update cheatsheets

linux/fprintd-enroll

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# fprintd-enroll
+
+> Enroll fingerprints into the database.
+> More information: <https://manned.org/fprintd-enroll>.
+
+- Enroll the right index finger for the current user:
+
+`fprintd-enroll`
+
+- Enroll a specific finger for the current user:
+
+`fprintd-enroll --finger {{left-thumb|left-index-finger|left-middle-finger|left-ring-finger|left-little-finger|right-thumb|right-index-finger|right-middle-finger|right-ring-finger|right-little-finger}}`
+
+- Enroll the right index finger for a specific user:
+
+`fprintd-enroll {{username}}`
+
+- Enroll a specific finger for a specific user:
+
+`fprintd-enroll --finger {{finger_name}} {{username}}`
+
+- Display help:
+
+`fprintd-enroll --help`