When i trying to execute shell script , it does out come out. keep on running

File name: /u02/app/scmdw/scr/appcheck1.sql Shell script: test.ksh #!/bin/ksh line=sqlplus $SCMDWSA @/u02/app/scmdw/scr/appcheck.sql echo "== Result of SQL: line = $line" When I try to execute the shell script test.ksh, the following step:

sqlplus $SCMDWSA @/u02/app/scmdw/scr/appcheck.sql

The script keeps running and does not exit. I want to check how it works if I change the filename from appcheck.sql to appcheck1.sql in the directory path. I also want to capture the error if an invalid file is kept in the actual directory path. Could you please help me understand how to capture the error and why is it running for such a long time?