Use following commands

cd $INST_TOP/admin/scripts
./adstpall.sh

If you are not sure what is the patch of $INST_TOP, then use following commands:

cd /u01/apps/[your hostname]/inst/apps/[your Oracle SID]_[your hostname]/admin/scripts

./adstpall.sh

Assumptions

• The Application Tier environment has been setup on the linux terminal window you access
• Database is up and running

Environment used for demonstration

• Oracle E Business Suite Release 12i
• Oracle Enterprise Linux 5.7