users (dbas) who execute this script will likely be logged in as oracle. user oracle sets LIBPATH in profile on login and it is required for some dba functions (it's a standard at our shop to set this).

there are several oracle homes (and LIBPATH and other envs) that can be set depending on the db being accessed on the box. i can work with different ORACLE_HOME's no problem.

sometimes i use the same environment, sometimes not. it seems as long as LIBPATH is unset, i don't have a problem.

i want to be able to unset it, or handle the exception and print a notice to the user to unset it and run script again. that's where my problem is, i can't find a way to handle install_driver.

thanks for the help!