tmutil: add page (#5054)

pages/osx/tmutil.md

@@ -0,0 +1,36 @@
+# tmutil
+
+> Utility for managing Time Machine backups. Most verbs require root privileges.
+> More information: <https://ss64.com/osx/tmutil.html>.
+
+- Set a HFS+ drive as the backup destination:
+
+`sudo tmutil setdestination {{path/to/disk_mount_point}}`
+
+- Set a 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`