On Thursday, 2 January 2003 at 16:53:05 +0100, Roman Neuhauser wrote:
> # [EMAIL PROTECTED] / 2003-01-02 16:40:45 +0100:
>> # [EMAIL PROTECTED] / 2002-12-30 11:26:22 +1030:
>>> On Sunday, 29 December 2002 at 18:46:12 +0100, Roman Neuhauser wrote:
>>>> # [EMAIL PROTECTED] / 2002-12-29 10:55:11 +1030:
>>>>
>>>> ...
>>>>
>>>>> For more information, take a look at the following, which is a message
>>>>> I send to systems which appear to be bona fide attempts from broken
>>>>> reverse addresses. Looking at the name of the sender, I'm sure this
>>>>> one is not bona fide, and I didn't really send the message. Most of
>>>>> my double bounces come from spammers.
>>>>
>>>> do you have that script publically available? I'd like to use
>>>> that, too.
>>>
>>> Yes, it's at http://www.lemis.com/B.
>>
>> Is that the version you actually use? I believe I found a bug:
>
> ...
>
> plus, you stuff the output in $myfile, and get the input from it as
> well. How's that supposed to work? :)
Heh. You're looking at this section, no doubt:
cat > $myfile
server=`egrep -i < $myfile "In: [HE][HE]LO"|sed 's/^.*LO *//' `
if [ "$server" = "" ]; then
server=`egrep -i < $myfile "^Subject.*errors from "|sed 's/^Subject.*errors from
//; s:\[.*::g' `
fi
Confusing, isn't it? The thing is, this program is a filter. The
first line copies stdin to $myfile for future (multiple) readings. If
it weren't a filter, the cat command would still read from stdin, so
if it were a terminal, it would just appear to hang.
Greg
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