How Can I Create the Date modified of a File?

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Now I am hare how create file using previous date. Mainly this is testing for remove previous file or folder older than seven days. So I am find on google many site but can’t exact solution. Finally I found this solution below.

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Step #01: Create file using old date below command

[[email protected]]#  touch -a -m -t 201912180130.09 fileName-18.ext

[[email protected]]#  touch -a -m -t 201912190130.09 fileName-19.ext

[[email protected]]#  touch -a -m -t 201912200130.09 fileName-20.ext

[[email protected]]#  touch -a -m -t 201912210130.09 fileName-21.ext

[[email protected]]#  touch -a -m -t 201912220130.09 fileName-22.ext

[[email protected]]#  touch -a -m -t 201912230130.09 fileName-23.ext

[[email protected]]#  touch -a -m -t 201912240130.09 fileName-24.ext

[[email protected]]#  touch -a -m -t 201912250130.09 fileName-25.ext

[[email protected]]#  touch -a -m -t 201912260130.09 fileName-26.ext

Step #02: Check all file created date using ll or ls -l command.

[[email protected]]# ls -l

-rw-r--r-- 1 root root  0 Dec 18 01:30 fileName-18.ext
-rw-r--r-- 1 root root  0 Dec 19 01:30 fileName-19.ext
-rw-r--r-- 1 root root  0 Dec 20 01:30 fileName-20.ext
-rw-r--r-- 1 root root  0 Dec 21 01:30 fileName-21.ext
-rw-r--r-- 1 root root  0 Dec 22 01:30 fileName-22.ext
-rw-r--r-- 1 root root  0 Dec 23 01:30 fileName-23.ext
-rw-r--r-- 1 root root  0 Dec 24 01:30 fileName-24.ext
-rw-r--r-- 1 root root  0 Dec 25 01:30 fileName-25.ext
-rw-r--r-- 1 root root  0 Dec 26 01:30 fileName-26.ext

Step #03: Now delete older than seven days using command.

[[email protected]]# find /root/file_location/* -mtime +6 -exec rm -rf {} \;

Then check again after delete file older than seven days.

-rw-r--r-- 1 root root  0 Dec 20 01:30 fileName-20.ext
-rw-r--r-- 1 root root  0 Dec 21 01:30 fileName-21.ext
-rw-r--r-- 1 root root  0 Dec 22 01:30 fileName-22.ext
-rw-r--r-- 1 root root  0 Dec 23 01:30 fileName-23.ext
-rw-r--r-- 1 root root  0 Dec 24 01:30 fileName-24.ext
-rw-r--r-- 1 root root  0 Dec 25 01:30 fileName-25.ext
-rw-r--r-- 1 root root  0 Dec 26 01:30 fileName-26.ext

This is details of command.

-a = accessed 
-m = modified 
-t = timestamp - use [YY]MMDDhhmm[.ss] time format

Step #04: Now you create one bash file & include cronjob for every day run this command.

[[email protected]]#  vi remove_olderthan_7.sh

#!/bin/bash

find /root/file_location/* -mtime +6 -exec rm -rf {} \;

For press :wq then press Enter

[[email protected]]#  chmod 755 remove_olderthan_7.sh

Step #05: Open cronjob file and add script file for run every day.

[[email protected]]#  crontab -e

0 1 * * * /your_location/remove_olderthan_7.sh

For press :wq then press Enter