#! /bin/sh
db=$1; shift
text=$1
if [ -f $db/$sender ]; then
echo "Welcome back, $sender. Your messages:"
cat $db/$sender
rm $db/$sender
fi
case "$text" in
.note\ *)
args=${text#.note }
who=${args%% *}
what=${args#* }
when=$(date)
echo "($when) <$prefix> $what" >> $db/$who
echo "Okay, $sender, I've left $who a note."
;;
esac