rsync

This is a command coming from the *NIX world I found to be useful for maintaining a backup for important software. It works either on a single computer or with two computers. The details can be found in the man page for the command. I’d like to thank Mike Doob from the MUUG for reminding me about this command.

The simplest way to use the command is “rsync <file list or directory 1> <file list or directory 2>”. All it does is copy files from area 1 to area 2 if they are newer than those in area 2.

To copy files from one computer to another the account name and computer name are needed. An example would be “rsync sbalmer@microsoft.com:/Secret_Meetings_To_Control_The_World.txt timc@apple.com:/Sunday_Coffee_With_Friends.text”. Incidentally, since they are different computers, passwords are needed.

I tried this a number of years ago with 10.2 and FreeNAS (FreeBSD) and apparently that was the only configuration which (according to everything I read on the net) would not work.

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About the Author

BlankMike

Mike Pfaiffer was President of A.P.P.L.E. and also the president of Digital Civilization magazine, a monthly UNIX magaine. Mike wrote a number of articles for A.P.P.L.E. and sadly passed away 19 July 2013 at age 54. https://passages.winnipegfreepress.com/passage-details/id-205359/Michael_Pfaiffer