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* Description: Linux shell script to bring up Oracle database automatically
* Date: 04:38 PM EST, 10/01/2018
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<1> When schedule the script on crontab, it could wait some period until all other processes starting up by "sleep":



             #---------------------------------------------------------------------
             #Minute (0-59),
             #|      Hour (0-23),
             #|      |       Day of the month (1-31),
             #|      |       |       Month of the year (1-12),
             #|      |       |       |       Day of the week (0-6 with 0=Sunday).
             #|      |       |       |       |       Commands
             #|      |       |       |       |       |
             #---------------------------------------------------------------------
			 
             @reboot sleep 300 && /home/oracle/auto_db_start/auto_db_start.sh