nginx日志切割脚本分享

实现方法一

#!/bin/bash
logs_path="/data/application/nginx/logs"
pid_path="/data/application/nginx/nginx.pid"
month=`date +%y-%m`
date=`date +%y-%m-%d`
time=`date +%h`
waittime=$((24*60*60))

logcut()
{
  cd $logs_path
  mkdir -p $month
  while true
  do
    mv $logs_path/access.log $logs_path/$month/access_$date.log
    kill -usr1 `cat ${pid_path}`
  done
  sleep $waittime
  return 0
}

case $1 in
start)
    logcut >/dev/null &
    ;;
stop)
    kill -9 `ps aux | grep logcut | grep -v grep | awk '{print $2}'`>/dev/null
    ;;
restart)
    kill -9 `ps aux | grep logcut | grep -v grep | awk '{print $2}'`>/dev/null
    logcut >/dev/null &
    ;;
*)
    echo "usage error!please use "start" or "stop" or "restart"!"
esac

实现方法二

试验环境：

# cat /etc/redhat-release 
red hat enterprise linux server release 5.3 (tikanga)

# /opt/nginx/nginx -v
nginx version: nginx/1.6.2

代码：

#!/bin/bash
# ==============================================================================
# chmod u+x /opt/nginx/cut_nginx_log.sh
# crontab -e
# 0 0 * * * /opt/nginx/cut_nginx_log.sh > /opt/nginx/logs/cut_nginx_log.log 2>&1
# ==============================================================================

logs_path="/opt/nginx/logs"
archive_year=$(date -d "yesterday" "+%y")
archive_month=$(date -d "yesterday" "+%m")
archive_date=$(date -d "yesterday" "+%y%m%d_%h%m%s")
if [ -r /opt/nginx/nginx.pid ]; then
  mkdir -p "${logs_path}/${archive_year}/${archive_month}"
  mv "${logs_path}/access.log" "${logs_path}/${archive_year}/${archive_month}/access_${archive_date}.log"
  kill -usr1 $(cat "/opt/nginx/nginx.pid")
  sleep 1
  gzip "${logs_path}/${archive_year}/${archive_month}/access_${archive_date}.log"
else
  echo "nginx might be down"
fi

# ==============================================================================
# clean up log files older than 100 days
# ==============================================================================

# change housekeeping=1 to enable clean up
housekeeping=0
keep_days=100
if [ $housekeeping == 1 ]; then
  if [ -d "${logs_path}" ]; then
    find "${logs_path}" -type f -name "access_*.log.gz" -mtime +${keep_days} -exec rm -f {} \;
  fi
fi

参考：
http://wiki.nginx.org/logrotation