My coworker created this script that can dynamically generate stop/start many database instances registered in /etc/oratab, this is a RAC server that has 12c and 11g oracle_homes RDBMS, the generated scripts will loop /etc/oratab and stop the TAF services gracefully first then stop the instances: -sh-4.1$ more stop_all_instances.sh #!/bin/sh # # Program: stopallinstances.sh # Purpose: stop all database instances on the server # ----------------------------------------------------------------------------- # # History # # Date Rev Who Comments # --------- ---- -------------- ----------------------------------------------- # 04Jan2018 1.0 Bing Ge Created # 03Sep2019 2.0 Bing Ge change to start the db in parallel. # # --------------------------------------------------- # LOCATION=/home/oracle/bge STARTDB=$LOCATION/scripts/start_db.sh STOPDB=$LOCATION/scripts/stop...