> On Dec 2, 2016, at 1:30 AM, @lbutlr <krem...@kreme.com> wrote:
> 
> I have a bash script that does it, and when a user wants this, I simply set 
> up a crontab for them. Usually after a week or so they want it turned off. 
> The script sends them a lightly styled HTML table in the email.
> 
> The heart of the script is:
> 
> if [ "$REJECT" = 1 ]; then
>  echo '<tr><th>&nbsp;</th><th>IP address</th><th>Claimed address</th></tr>'
>    bzgrep "$MATCHPAT" $LOGF | grep -i reject | egrep 'from=<[^>]+>' | grep -v 
> "Protocol error" | \
>     grep -v "$EXCLUDE" | sort -u | sed 's/from=<//' | tr -d '>,[]:' | grep -v 
> rejected | \
>     awk '{print "<tr><td class=\"rej\">REJECTED</td><td 
> class=\"right\">"$16"</td><td>"$20"</td></tr>"}'
>  fi

Careful with that.  To easy to create a script injection vector.  Bash is not
a good language in which to construct safely quoted remote content for injection
into a suitable HTML skeleton.

-- 
        Viktor.

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