Simple command for Oracle in script oracle_script.sh: 
Text of script: 
#Test connect to database Oracle 
sqlplus / as sysdba <<EOF 
select * from dual; 
quit 
EOF 
#Work with recovery manager (rman) 
rman target / <<EOF 
show all; 
exit 
EOF 
Run script: 
$ ./oracle_script.sh 
  
Text of SQL file for run sql query 
Text script.sql: 
select * from dual; 
quit 
Run file script.sql: 
$ sqlplus / as sysdba @script.sql 
  
  
		
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