I don't know if you're comfortable with these sources or if these match the version of RHEL that you are using, but I found some RHEL RPMs for inotifywait at here and at https://rpm.pbone.net. (I tried putting in the link to the search results for 'lnotifywait' and all of the 'RHEL' options for the second site, but the link has square brackets and I couldn't figure out how to get that to work with PerlMonks' markup.)