清理过期日志

tidy_dirs.sh

#!/bin/bash
#
# SCRIPT: tidy_dirs.sh
# AUTHOR: Terry.Zheng
# E-MAIL: jfhgmv@gmail.com
# DATE: Thu Jan 23 10:08:29 2014
# REV: 1.0.A (Valid are A, B, D, T and P)
#            (for Alpha, Beta, Dev, Test and Production)
#
# PLATFORM: GNU/Linux (SPECIFY: AIX, FreeBSD, GNU/Linux, HP-UX, Solaris
#                      or Not platform dependent)
#
# PURPOSE: 清理ERP、SCM等应用的用户操作日志
#          根据要日志的过期天数把日志目录分类，先删除过期日志，再删除空目录。
#          
# TODO: Add lock file.
#
# REV LIST:
#     DATE: DATE_of_REVSION
#     BY: AUTHOR_of_MODIFICATION
#     MODIFICATION: Describe what was modified, new features, etc--
#
#
# set -n # Uncomment to check script syntax, without execution.
#        # NOTE: Do not forget to put the comment back in or
#        #       the shell script will not execute!
#
# set -x # Uncommet to debug this shell script.
#
################################################################
#     DEFINE FILES AND VARIABLES HERE
################################################################
LOGGER='/usr/bin/logger -s -t tidy_dirs.sh -p cron.error'
LOG_ERROR='/var/log/tidy_dirs-error.log'

two_days=('/var/www/remote_data/statics/result/'
    '/var/www/remote_data/statics/var/'
    '/var/www/remote_data/statics/console/'
    '/var/log/java/erp/'
    '/var/log/java/scm/'
    '/var/log/java/img/'
    '/opt/tomcat_scm/logs/'
    '/opt/apache-tomcat-7.0.42/logs/')



################################################################
#     DEFINE FUNCTIONS HERE
################################################################

#######################################
# Tidy the backup dir, remove expired files and empty dir.
# Globals:
#   LOGGER
#   LOG_ERROR
# Arguments:
#   dir : tidy file in this directory, and exclude itself.
#   days : a number(greater than 1) of expire days.
# Returns:
#   None
#######################################
tidy_dir ()
{
  local dir=${1}
  local days=${2}
  if [[ ${days} -gt 1 ]]; then
    if ! find "${dir}" -type d -empty 2>&1 > /dev/null; then
      cd ${dir} > /dev/null 2>&1 && {
        # 1st remove the expire backup files.
        /sbin/logsave -as ${LOG_ERROR} \
        find -maxdepth 2 -depth -type f -mtime +${days} \
          | /usr/bin/xargs -t -I {f} rm -f {f}

        # 2nd remove the directory if it empty.
        /sbin/logsave -as ${LOG_ERROR} \
        find -maxdepth 2 -depth -type d -empty -mtime +${days} \
          | /usr/bin/xargs -t -I {d} rm -rf {d}
      } || {
        ${LOGGER} -- "Cannot change directory to ${dir}."
        exit 4
      }
    else 
      ${LOGGER} -- "${dir} is EMPTY, go to next."
    fi
  else
    ${LOGGER} -- "Confirm the arguments for function tidy_dir ()."
    exit 4
  fi
}

################################################################
#     BEGINNING OF MAIN
################################################################
for (( d = 0 ; d < ${#two_days[@]} ; d++ )) ; do
    tidy_dir ${two_days[d]} 2
done

exit $?
##---------------------- End of script -----------------------##