Update cheatsheets

osx/tmutil

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+---
+syntax: markdown
+tags: [tldr, osx]
+source: https://github.com/tldr-pages/tldr.git
+---
+# tmutil
+
+> Utility for managing Time Machine backups. Most verbs require root privileges.
+> More information: <https://keith.github.io/xcode-man-pages/tmutil.8.html>.
+
+- Set an HFS+ drive as the backup destination:
+
+`sudo tmutil setdestination {{path/to/disk_mount_point}}`
+
+- Set an APF share or SMB share as the backup destination:
+
+`sudo tmutil setdestination "{{protocol://user[:password]@host/share}}"`
+
+- Append the given destination to the list of destinations:
+
+`sudo tmutil setdestination -a {{destination}}`
+
+- Enable automatic backups:
+
+`sudo tmutil enable`
+
+- Disable automatic backups:
+
+`sudo tmutil disable`
+
+- Start a backup, if one is not running already, and release control of the shell:
+
+`sudo tmutil startbackup`
+
+- Start a backup and block until the backup is finished:
+
+`sudo tmutil startbackup -b`
+
+- Stop a backup:
+
+`sudo tmutil stopbackup`