#!/bin/sh
# trim huge news log files (> MAX_SIZE), preserve last 1000 lines of logs
# in *.tail files for troubleshooting
#
# 1998-12-01 Rafael Skodlar

MAX_SIZE=2000000
NEWS_LOG=/var/spool/news/var.log.news
#NEWS_LOG=/var/log/news/
TMP=~/tmp
NEWS=$TMP/news.logs
BIG_NEWS=$TMP/big.news.logs

#for file in (ls -l $NEWS_LOG | awk '{if($5 > $MAX_SIZE)print $9}}')
/bin/ls -l $NEWS_LOG > $NEWS
cat ${NEWS}|/bin/awk '{if($5 > 2000000)print $9}' > ${BIG_NEWS}

for file in `cat ${BIG_NEWS}`
do
        TAIL_FILE=${NEWS_LOG}/tails/$file.tail
        tail -1000 $NEWS_LOG/$file >$TAIL_FILE
        cp /dev/null $NEWS_LOG/$file
        echo trimmed log: $file
done