I created my backup scripts. When I set the script in the cron it does not execute, but it can be done at the shell command. The error message is as follows: "error while loading shared library:libclntsh.so.9.0:cannot open shared object file: no such file or directory." I checked the link in ORACLE_HOME/lib and it exists. I need help.
When a shell script executes, it knows nothing of the environment variables you have set up for your session. So you'll have to code your $ORACLE_HOME and $LD_LIBRARY_PATH environment variables in your script as well. The script works in your session because you have these env vars defined. But running in cron runs without these env vars. A good way to test your cron scripts is to run them in your session with the "sh -x" command similar to the following:
sh -x scriptname
This comes the closest to mimicing how cron runs your script.
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