usr/src/usr.bin/calendar/calendar.sh

: calendar.sh 4.5 84/02/14
PATH=/bin:/usr/bin:
tmp=/tmp/cal0$$
trap "rm -f $tmp /tmp/cal1$$ /tmp/cal2$$"
trap exit 1 2 13 15
/usr/lib/calendar >$tmp
case $# in
0)
        trap "rm -f $tmp ; exit" 0 1 2 13 15
        (/lib/cpp calendar | egrep -f $tmp);;
*)
        trap "rm -f $tmp /tmp/cal1$$ /tmp/cal2$$; exit" 0 1 2 13 15
        /bin/echo -n "Subject: Calendar for " > /tmp/cal1$$
        date | sed -e "s/ [0-9]*:.*//" >> /tmp/cal1$$
        sed '
                s/\([^:]*\):.*:\(.*\):[^:]*$/y=\2 z=\1/
        ' /etc/passwd \
        | while read x
        do
                eval $x
                if test -r $y/calendar
                then
                        (/lib/cpp $y/calendar | egrep -f $tmp) 2>/dev/null > /tmp/cal2$$
                        if test -s /tmp/cal2$$
                        then
                                cat /tmp/cal1$$ /tmp/cal2$$ | /bin/mail $z
                        fi
                fi
        done
esac