Having directories with 777 permissions is very dangerous. Write a find command that will locate, print and change the directories that have permission 777 to 755 (note: use -exec).

Write a find command that will look for EMPTY files and remove them from your file system.

Write a find command that will locate and list all the files that belong to the user student.

Write a find command that will locate files that were accessed in the last 50 days.

white a find command that will locate files that were modified in the last 50 days.

Write a find command that will locate files that were modified more than 50 days back and less than 100 days.

Write a find command that will locate files that are between 50MB and 100MB in size.

Assuming you have an images directory in your home directory, write a tar command that will create a compressed gzip file of the images directory. Mane the compressed file myImages.tar.gz

write a tar command to untar the file you created in question 1.

Create a incremental backup system using rsync to back up rour / partition on your hard drive to a remote system.

You need to use the cron facility from Linux. You can read about how to use the cron functionality here (Links to an external site.)Links to an external site..

You will create 1 rsync command for the dialy backups, one for the weekly backups and one for the monthly backups.