[string] Convert string to date in bash

date only work with GNU date (usually comes with Linux)

for OS X, two choices:

  1. change command (verified)

    #!/bin/sh
    #DATE=20090801204150
    #date -jf "%Y%m%d%H%M%S" $DATE "+date \"%A,%_d %B %Y %H:%M:%S\""
    date "Saturday, 1 August 2009 20:41:50"
    

    http://www.unix.com/shell-programming-and-scripting/116310-date-conversion.html

  2. Download the GNU Utilities from Coreutils - GNU core utilities (not verified yet) http://www.unix.com/emergency-unix-and-linux-support/199565-convert-string-date-add-1-a.html

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