title: How to check on FTP if there files on the list older than 7 days
body: <p>I have a list of files from remote FTP Server:</p>
  
  <pre><code>drwxrwxrwx   2 test-backup everyone     4096 Jul  8 02:30 .
  drwxrwxrwx   5 0        0            4096 Jul 23 07:02 ..
  -rw-rw-rw-   1 test-backup everyone   352696 Jul 18 02:30 expdp_TEST11P2_custom_Fri.dmp.gz
  -rw-rw-rw-   1 test-backup everyone   352796 Jul 21 02:30 expdp_TEST11P2_custom_Mon.dmp.gz
  -rw-rw-rw-   1 test-backup everyone   352615 Jul 19 02:30 expdp_TEST11P2_custom_Sat.dmp.gz
  -rw-rw-rw-   1 test-backup everyone   352626 Jul 20 02:30 expdp_TEST11P2_custom_Sun.dmp.gz
  -rw-rw-rw-   1 test-backup everyone 10511523642 Jul 24 03:08 expdp_TEST11P2_custom_Thu.dmp.gz
  -rw-rw-rw-   1 test-backup everyone 10496881744 Jul 22 03:03 expdp_TEST11P2_custom_Tue.dmp.gz
  -rw-rw-rw-   1 test-backup everyone 10504557195 Jul 23 03:03 expdp_TEST11P2_custom_Wed.dmp.gz
  </code></pre>
  
  <p>I need to check if there are any files older than 7 days, Have You any Ideas how can I do this in Bash? </p>