in reply to Epoch to specific output

Using bash you say? If gnu tools are available, the gnu date utility can perform said task: 
$ date +%Y%m%d%H%M -u -d @1388679108
(Prints the UTC stamp for given epoch time.)

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Re^2: Epoch to specific output
by Anonymous Monk on Jan 02, 2014 at 21:53 UTC
    Not to say that non-GNU versions of date(1) perform any worse: 
    % date -ur 1388679108 +%m%d%H%M
01021611

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    That syntax ought to work on all of the four major BSDs.
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