Dallman Ross wrote:
Baron Fujimoto wrote:
Dallman Ross wrote:
Robert A. Hayden wrote:
grep "^From: " /var/spool/mail/rhayden | wc -l
COUNT = `grep -c '^From:' $MAIL`
If you're trying to count messages in a file in mbox format,
the regex for the message delimiter should be "^From ". [...]
Note that this may also subject to error if your LDA does not
do "^From " escaping in message bodies.
Yes, certainly, you're right. I wasn't touting that line. [...]
The "formail -s echo < $MAIL | wc -l" is what got my vote.
Lars Hecking also suggested grep -c "^From ". In the Elm package is a
small script called "messages" that does the same.
Formail's technique is safer, but I generally disarm its safeties with
-em1, as my foo-DA does do the needed escapes. So I'd do the grep -c.
On a related note, here's my concoction for a quick-and-dirty summary:
formail -X From: -X Subject: -s frum.awk < $MAIL
where frum.awk is a small script:
#!/usr/bin/awk -f
BEGIN { w = 36 }
/^$/ { exit }
/^From:/ { sub(/^From: */, ""); from = substr($0, 1, w) }
/^Subject:/ { sub(/^Subject: */, ""); subj = substr($0, 1, w) }
END { printf "%-*s\t%s\n", w, from, subj }
Mike
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