Computer science:

What is the unix command to create file with the following permissions. Show the command with permission numbers for each.

a. Create a file named file1 with permissions r-xr-xr-- .

b. Create a file named file2 with permissions rwsr-xr-x .

c. Create a file named file3 with permissions rwsrwxr-t .

d. Create a file named file4 with permissions r-xrwSr-t

e. Create a file named file05 with permissions rwxrw-r--