> # Each queue is a file in RFC-822 format with one header: Deadline,
> # which is expressed in time_t format. The body of the message
> # (normally an RFC-822 message) is fed to sendmail to send it.
Were I to reimplement this on a GNU
system, I'd be tempted to represent
the queue with a directory; mtimes
on the files would encode deadlines.
Set a deadline:
touch --date '3 days' mXXXXX
touch --date '29 jan' mXXXXX
Find the earliest deadline:
ls -t m* | tail -1
List the queue:
ls -t m* | xargs egrep Subject:
Find overdue messages:
touch ref
find . -not -newer ref -and -name "m*"
or perhaps just put dummy Subject
lines into ref, and do both with:
echo "Subject: ------" `date` "-------" > ref
ls -t m* ref | xargs egrep -h Subject:
Calculating just how early (or late)
messages are isn't so simple, though.
-Dave
