2 test -f /etc
/crontabs
/root ||
touch /etc
/crontabs
/root
3 SEED
="$( dd if=/dev/urandom bs=2 count=1 2>&- | hexdump | if read line; then echo 0x${line#* }; fi )"
4 MIN
="$(( $SEED % 59 ))"
5 grep -q "ff_mapupdate.sh" /etc
/crontabs
/root ||
echo "$MIN * * * * /usr/sbin/ff_mapupdate.sh" >> /etc
/crontabs
/root
6 /etc
/init.d
/cron restart