Executing sql script to run in background

lvpu7:/opt/oraprd # cat rebuild_index.sh

#!/bin/ksh

sqlplus "/ as sysdba" << EOF

@/opt/oraprd/rebulid.sql

exit;

EOF

lvpu7:/opt/oraprd # cat rebulid.sql

spool index_rebuild.log

set echo on time on timing on

alter index ELCC.CK_CLIENT_MEMBER_ID rebuild nologging;

alter index ELCC.CLGDR_X1 rebuild nologging;

alter index ELCC.CLNT_CONFIDENCE_SCORE rebuild nologging;

spool off

nohup sh rebuild_index.sh &

==================

#!/bin/ksh

sqlplus <<-eof o:p="">

/ as sysdba

set echo on timing on

exec dbms_stats.gather_schema_stats(ownname=>'CASHPOOL',options=>'gather auto',estimate_percent=>DBMS_STATS.AUTO_SAMPLE_SIZE,degree=>6);

EOF

nohup sh gather.sh &