How do I find the script that produces a " cannot open `+2' " error.

The error is: /usr/bin/tail: cannot open `+2' for reading: No such file or directory /bin/df -lk -x tmpfs -x none | /usr/bin/tail +2 | /bin/sort -u failed.

I know this is caused by RHEL 5 in that it need a "-n" before the "+2", but I don't know enough unix to find the particular script that is causing the error.

I'm getting this error when I look at a target server configuration page.

Thanks - JR