Hi
i'm calling a pl/sql procedure which is returning one variable.
i'm trying to assing this value to variable in shell script

the code i wrote is

** in shell script**
var= 'sqlplus user/pass @ret.sql'
echo $var

**

and

variable dum_var number
exec rt_test(UM_VAR);
exit;

in ret.sql

the error i'm getting is
sqlplus user/pass @ret.sql: not found.

Can somebody suggest me how to receive variable from plsql in shell.