linux下的通用日志清理脚本

#!/bin/sh
#清理日志的脚本
# in_day_num: like 1 2 is delete 2day ago logs
# in_log_path like tomcat log home
in_log_path=${1}
in_day_num=${2}

tmp_delete_log=/var/log/deletelog/"`date +%Y%m`.log"

deleteLog()
{
 inner_num=${1}
 #find log
 echo "[`date`]  >> start delete logs---" >> $tmp_delete_log
 find ${in_log_path} -type f -mtime ${inner_num} -print0 | xargs -0 rm -rf
 echo "[`date`]  >> end delete logs---" >> $tmp_delete_log

}
init()
{
 mkdir -p /var/log/deletelog/
}
main()
{
 init
 if [ -z ${in_log_path} ];then
    echo "[`date`] >> error log_path not init---" >> $tmp_delete_log
  return
 fi

 inner_day_num=+7
 if [[ -n ${in_day_num} ]] && [[ ${in_day_num} -ge 1 ]] ; then
    inner_day_num=${in_day_num}
 fi
 deleteLog ${inner_day_num}
}

main