Goal

• Remove old video, data, log files in my CCTV server

Intro

• My CCTV server directory tree

CCTV_HOME
|
|__ bin
|__ cctv
|   |__ cam01
|   |   |__ data
|   |   |   |__ 201905
|   |   |   |__ 201906
|   |   |   |__ 201907
|   |   |   |   |__ 20190701
|   |   |   |   |__ 20190702
|   |   |   |   |__ ...
|   |   |   |   |__ 20190730
|   |   |   |   |__ 20190731
|   |   |   |   |   |   cctv_20190731001231123.avi
|   |   |   |   |   |   cctv_20190731001431145.avi
|   |   |   |   |   |   ...
|__ log
|   |   cctv_20190415212234567.log
|   |   cctv_20190613112834139.log
|   |   cctv_20190711082932345.log
|   |   ...
|__ tmp
|   |   temp_20190415212234567.dat
|   |   temp_20190613112834139.dat
|   |   temp_20190711082932345.dat
|   |   ...

Practice

• script

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#!/bin/bash ########################################################################### # # Remove old files including .avi, .dat, .ini, .log and temporary files # ########################################################################### # 1.0.0 2019-07-31 dorbae Initialize ########################################################################### # Home directory MY_CAMERA_HOME=/home/dorbae/cctvhome # Define how many days you keep the files KEEP_DAYS=7 # Remove old temporary files which were modified more than a day ago find ${MY_CAMERA_HOME}/tmp/ -name 'temp_*' -mtime +1 -exec rm -f {} \; # Remove old log files which were modified more than n days ago find ${MY_CAMERA_HOME}/log/ -name '*.log' -mtime +${KEEP_DAYS} -exec rm -f {} \; # Remove old video and data files which were modified more than n days ago find ${MY_CAMERA_HOME}/cctv/ -name 'cctv_*' -mtime +${KEEP_DAYS} -exec rm -f {} \; # Remove old YYYYMMDD(daily) directory # eg. if today is 2019-07-31, remove ${MY_CAMERA_HOME}/cctv/*/data/201907/20190724 OLD_DAILY_DIRECTORY=`date '+%Y%m%d' -d "${KEEP_DAYS} day ago"` OLD_MONTH_DIRECTORY=`date '+%Y%m' -d "${KEEP_DAYS} day ago"` rm -rf ${MY_CAMERA_HOME}/cctv/*/data/${OLD_MONTH_DIRECTORY}/${OLD_DAILY_DIRECTORY} # Remove old YYYYMM(monthly) directory # Also, remove directory which were created 2 month ago. # Because I want to remove unnecessary directories certainly if it was not deleted accidently by any reason. # - option : remove a padding(0) # eg. %d -> 07, 08, 11 / %-d -> 7, 8, 11 TODAY=`date '+%-d'` if [ ${TODAY} -gt ${KEEP_DAYS} ]; then MONTH_AGO_1_DIRECTORY=`date '+%Y%m' -d "1 month ago"` MONTH_AGO_1_YYYY=`date '+%Y' -d "1 month ago"` CURRENT_YYYY=`date '+%Y'` # I don't know why it works like that exactly # When I execute `date '+%Y%m' -d "1 month ago"` command on 31th July # It returns not 06 but 07 # I think it maybe depends on Timezone # So, check the month again manually if [ ${CURRENT_YYYY} -ne ${MONTH_AGO_1_YYYY} ]; then # Remove YYYYMMDD directory rm -rf ${MY_CAMERA_HOME}/cctv/*/data/${MONTH_AGO_1_DIRECTORY} fi # Remove the directory which were created 2 month ago MONTH_AGO_2_DIRECTORY=`date '+%Y%m' -d "2 month ago"` rm -rf ${MY_CAMERA_HOME}/cctv/*/data/${MONTH_AGO_2_DIRECTORY} fi exit 0