acct cronjob does not work if using dateext in logrotate

[M]

When you switch to dateext logrotate format you get logfiles of the format /var/log/wtmp-YYYYMMDD or /var/log/wtmp-YYYYMMDD.gz the /etc/cron.monthly/acct script assumes logrotate will create a file named .1 or .1.gz

This isn't necessarily the best solution, but here is one I came up with. Uses find to find all logfiles named wtmp, wtmp-* or wtmp.[0-9]* (this script creates a wtmp.report which would match wtmp.*), and then uses ls and sed to get the 2nd most recent file, or it will default to /var/log/wtmp if there isn't a 2nd most recent file. Checks the file extension, and uses trap to remove the tempfile at the end of execution.

Switched to bash from sh

Excerpt:

LASTLOG=`find /var/log -name "wtmp" -o -name "wtmp.[0-9]*" -o -name "wtmp-*" | xargs ls -1t | sed -n '2p'`
LASTLOG=${LASTLOG:-"/var/log/wtmp"}
EXTENSION=`echo "$LASTLOG" | cut -d'.' -f2`
if [ "$EXTENSION" == "gz" ]
then
    WTMP=$(tempfile)
    trap "rm -f -- '$WTMP'" EXIT
    gunzip -c $LASTLOG > "${WTMP}"
else
    WTMP=$LASTLOG
fi