On Fri, Jul 20, 2012 at 09:50:53AM -0600, Paul E Condon wrote: > [cut] > What test can I code in Bash to determine that there is no disk > mounted at this mount point? I'm thinking of testing for the > presence of the file lost+found, but is there something better? Two points. 1. See if "man mountpoint" is suitable 2. Don't re-invent the wheel. There are plenty of people who've solved the "backup to a USB disk" before you. Some of their work is in debian.
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