Programming with Unix

Permissions a. What is the octal equivalent of this file's permission block? - ruxac--r-x. 1 joe domain-users 10240 Sep 15 10:35 script1.sh b. What command would you use to allow group members to execute the file script1.sh but leave all other permissions as before? Note: Use character codes (symbolic mode). c. What command would you use to set these permissions in the file scriptl.sh (overriding all previous permissions)? - read, write, and exec permissions for the current user, - read and exec permissions for group and others. Note: Use octal values (numeric mode). d. What command would you use to give the user with username Kris the right to modify the file scriptl.sh without changing any other of its permissions