Ques 1. Implement File Management Commands to accomplish the following tasks. a) Set the permissions on the file Student to read/write for the owner

and read for everyone else.

b) Turn on a files setuid bit without changing (or knowing) the current

permissions.

c) List the contents of the current directory, sorting by modification

time and listing the most recently modified file last.

d) Change the group of a file called Shareddata from user to friends.