For example:
sqlplus -s admin/password << EOFwhenever sqlerror exit sql.sqlcode;set echo off set heading off@pl_script_1.sql@pl_script_2.sqlexit;EOF
Wouldn't something akin to this be better, security-wise?:
sqlplus -s /nolog << EOFCONNECT admin/password;whenever sqlerror exit sql.sqlcode;set echo off set heading off@pl_script_1.sql@pl_script_2.sqlexit;EOF
If you want to redirect the output to a log file to look for errors or something. You can do something like this.
sqlplus -s <<EOF>> LOG_FILE_NAME user/passwd@host/db#Your SQL codeEOF