linux定时删除历史日志文件实现方式--shell脚本
1、tools目录文件结构
[root@www tools]# tree tools/ tools/ ├── bin │ ├── del_history_files │ └── etc ├── del_history_files.cfg 2 directories, 2 files
2、删除历史文件脚本 del_history_files
[root@www tools]# more tools/bin/del_history_files #!/bin/sh # 删除指定目录下,文件时间早于指定时间节点的文件,时间粒度:小时 # 配置文件格式 : 需清理的目录=小时数 # # # define restricted path PATH="/bin:/usr/bin:/sbin:/usr/sbin" # adirname - return absolute dirname of given file adirname() { odir=`pwd`; cd `dirname $1`; pwd; cd "${odir}"; } # --------- # constants # --------- MYNAM=`basename "$0"` MYDIR=`adirname "$0"` MYCFG="${MYDIR}/../etc/${MYNAM}.cfg" MYTMP="${MYDIR}/../tmp" MYLCK="${MYTMP}/${MYNAM}.lock" # perform some locking (as good as it gets in a shell) [ -s "${MYLCK}" ] && kill -0 `cat "${MYLCK}"` 2>/dev/null && die "${MYNAM}: already running!" echo "$$" > "${MYLCK}" PATHS=(`cat ${MYCFG}`) for PP in ${PATHS[@]} do APP_PATH=`echo ${PP} | awk -F'=' '{print $1}'` N=`echo ${PP} | awk -F'=' '{print $2}'` if [ -d ${APP_PATH} ] ; then T=`/bin/date --date "${N} hours ago" "+%Y%m%d%H%M"` TMP_FILE="/tmp/`echo ${PP} | md5sum | awk '{print $1}'`" touch -t ${T} ${TMP_FILE} find ${APP_PATH} ! -newer ${TMP_FILE} -type f -print0 | xargs -0 -n 100 rm -rf find ${APP_PATH} -type d -empty -print0 | xargs -0 -n 100 rm -rf &> /dev/null fi done rm -rf ${MYLCK}
3、删除历史文件脚本的配置文件 del_history_files.cfg
[root@www tools]# more tools/etc/del_history_files.cfg #需清理的目录=小时数 /home/logs/nginx=720 /home/logs/varnish=720
4、crontab 执行即可
[root@www tools]# more /etc/crontab SHELL=/bin/bash PATH=/sbin:/bin:/usr/sbin:/usr/bin MAILTO=root HOME=/ #clear old logs 00 6 * * * root /home/tools/bin/del_history_files
以上会每天6点0分删除配置文件目录中的30天前的文件。