Thanks for all your replies!
What Volker said was that the header name is not unique. I can take
that one of two ways:
Damn, I tried to make myself clear :(
The header name is known, and there will be multiple headers of that
name. I want to remove a particular instance of that header, the one
which has "somestring" in the value part.
formail -IHeadername: removes all the headers with that name, but I only
want to remove a single one. formail couldn't even remove the first or
last (only leave the first or last). That's requiring to know that it is
the Nth header I want to axe, which is a requirement I prefer to get
around if possible as I suspect it's unreliable in my case.
David's formail -c | grep -iv would work, but leaves the remaining
headers in a funny state.
Obviously procmail/formail can't easily deal with it. Perhaps some
external tool would be better. Reassembling the headers with gawk would
work but isn't so nice of course.
SIXTYFOUR =
"................................................................"
NOT_RCVD =
"[^R]|R[^e]|Re[^c]|Rec[^e]|Rece[^i]|Recei[^v]|Receiv[^e]|Receive[^d]|Received[^:]"
:0 h fw
* $ ^\/($NOT_RCVD)[^$WS:]*:$SIXTYFOUR$SIXTYFOUR
* MATCH ?? ^^\/[^:]+:
| formail -I "$MATCH"
Clever! But it's for a different problem :(
Thanks,
Volker
--
Volker Kuhlmann is possibly list0570 with the domain in header
http://volker.dnsalias.net/ Please do not CC list postings to me.
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