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scheduling background tasks in succession

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linux-howto

http://unix.stackexchange.com – I've got three SAS programs to run in the background over a weekend. The three programs output information into files of the same names, so I'll need to remove these output files after the first program finishes and before the second program starts, as well as after the second program finishes and before the third program starts. Obviously the simplest way to get around this issue is to alter each of the programs in such a way that the output filenames are different, but that wouldn't help me learn how to use Unix. So this is what I've got so far: # Begin by running the first SAS program in t (HowTos)