[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}