[PLUG] Another grep question
Russell Evans
russell-evans at uswest.net
Sun Aug 3 14:40:03 UTC 2003
#!/bin/sh
LOG=/var/log/maillog
TIME_SERVER=128.118.46.3
DATE_BIN=`which date 2>/dev/null`
NTP_BIN=`which ntpdate 2>/dev/null`
if [ ! -r $LOG ] ; then
echo "$LOG is not readable"
exit 1
fi
if [ $NTP_BIN ] && [ $DATE_BIN ] ; then
MONTH=`$DATE_BIN +%b`
DAY=`$DATE_BIN +%e`
DATESTR="$MONTH $DAY"
if [ $DAY -gt 9 ] ; then
DATE_TEST=`$NTP_BIN -uq $TIME_SERVER | tail -n1 | awk '{print $2,$1}'`
else
DATE_TEST=`$NTP_BIN -uq $TIME_SERVER | tail -n1 | awk '{print $2," "$1}'`
fi
if [ "$DATESTR" != "$DATE_TEST" ] && [ "$DATE_TEST" ] ; then
echo "System date is "$DATESTR" while $TIME_SERVER has date $DATE_TEST"
exit 2
fi
elif [ $DATE_BIN ] ; then
DATESTR="$MONTH $DAY"
MONTH=`$DATE_BIN +%b`
DAY=`$DATE_BIN +%e`
DATESTR="$MONTH $DAY"
fi
if [ $1 ] ; then
if [ "$1" = "-h" ] || [ "$1" = "--help" ] ; then
echo "usage $0 [ pattern ]"
echo "Searh $LOG for today's date and pattern if supplied"
exit 0
fi
SEARCH=$DATESTR.*$1
echo "$SEARCH"
grep -h -e "$SEARCH" $LOG || exit 1
else
echo here
grep -h "$DATESTR" $LOG || exit 1
fi
exit 0
Thank you
Russell
On Sun, 3 Aug 2003 11:59:16 -0700 (PDT), Steven Raymond said:
> Okay, now that I got "echo" to stop stripping out my wanted spaces, how do
> I pass the output of it to grep, surrounded by quotes? The following is
> broke because grep sees:
>
> DATESTR=`date -d "today" '+%b %e'`
> grep `echo "$DATESTR"` /var/log/maillog
>
>
> grep Aug 3 /var/log/maillog
>
> Grep doesn't like the space(s) between Aug and 3. I have tried all sorts
> of single- and double-quoting around the echo command, but it gets broken
> in various ways. Any easy fixes?
>
> Perhaps I should explain my end goal instead of bugging plug every 15
> minutes when I run into a new problem. I simply want to make a daily (or
> perhaps every 4 hours) cron job that emails me the output of every line of
> my /var/log/maillog* which contains the word "reject" so I can keep track
> of spams (for alerting me to false positives). Plus I get a small thrill
> just seeing how many spams are correctly rejected. There must be a
> smarter way to do so than my current scripting efforts which have thus far
> been a shameful embarrasment. ;) Advice is appreciated.
>
>
>
>
>
> _______________________________________________
> PLUG mailing list
> PLUG at lists.pdxlinux.org
> http://lists.pdxlinux.org/mailman/listinfo/plug
>
>
More information about the PLUG
mailing list