Here is a script I used on a Linux server to always keep PFCMARK 10 years ahead. cat /usr/local/bin/SET_PFCMARK YEAR=`date '+%G'`; YEAR=$((YEAR + 10)); PFCMARK="${YEAR:2:2}"; export PFCMARK I set it in /etc/profile.d/filepro.sh and in my rc.local file. I used this syntax . /usr/local/bin/SET_PFCMARK. Richard D. Williams