tally.unwanted

早期freebsd实现

#!/bin/sh
##  $Revision: 1.4 $
##  Tally/update the unwanted newsgroup log
##  Read an innd log on stdin, scan it for articles that were unwanted
##  because they newsgroups were not in our active file.  Update unwanted.log
##  to have the new count of unwanted groups, and how often they were used.

##  =()<. @<_PATH_SHELLVARS>@>()=
. /var/spool/news/data/innshellvars

PROGNAME=unwanted
LOCK=${LOCKS}/LOCK.${PROGNAME}
LOG=${MOST_LOGS}/unwanted.log

UNWANTED_NEW=${LOG}.new
UNWANTED_OLD=${LOG}.old

##  Lock.
shlock -f ${LOCK} -p $$ || {
    echo "$0: cannot lock $LOCK" 1>&2
    exit 2
}

##  Prepare the files.
if [ ! -f ${LOG} ]; then
    touch ${LOG}
    chmod 0660 ${LOG}
fi
rm -f ${UNWANTED_NEW} ${UNWANTED_OLD}
ln ${LOG} ${UNWANTED_OLD}
touch ${UNWANTED_NEW}
chmod 0660 ${UNWANTED_NEW}

##  Grab the data.
${AWK} '$4 == "-" && $7 == "437" && $8 == "Unwanted" { print }' \
    | ${SED} 's/.*"\(.*\)".*/\1/' \
    | sort \
    | uniq -c \
    | cat - ${LOG} \
    | ${AWK} 'BEGIN {
	    unwanted[0]=0;
	}
	{
	    unwanted[$2] += $1;
	}
	END {
	    for (group in unwanted) {
		if (group != 0) {
		    print unwanted[group], group;
		}
	    }
	}' \
    | sort -n -r >${UNWANTED_NEW}
mv -f ${UNWANTED_NEW} ${LOG}

##  All done.
rm -f ${LOCK}
exit 0