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+Notice that in the [[previous example|getting_file_content]], you had to
+git fetch and merge from laptop first. This lets git-annex know what has
+changed in laptop, and so it knows about the files present there and can
+get them.
+
+If you have a lot of repositories to keep in sync, manually fetching and
+merging from them can become tedious. To automate it there is a handy
+sync command, which also even commits your changes for you.
+
+ # cd /media/usb/annex
+ # git annex sync
+ commit
+ nothing to commit (working directory clean)
+ ok
+ pull laptop
+ ok
+ push laptop
+ ok
+
+After you run sync, the repository will be updated with all changes made to
+its remotes, and any changes in the repository will be pushed out to its
+remotes, where a sync will get them. This is especially useful when using
+git in a distributed fashion, without a
+[[central bare repository|tips/centralized_git_repository_tutorial]]. See
+[[sync]] for details.