O rw-rw-r-- Question 15 Which command will allow a user to change the permissions of a file? Ochperm Ochown chmod Operm Question 16 Previous O perm Question 16 Which of the following commands is used to change the ownership of a file? Ochown O chperm Ochow Ochmod Question 17 The my command requires at least two arguments. Previous CSSIC Question 17 The mv command requires at least two arguments. True or False? O True O False Question 18 Which command is used to copy files at the bit level? Odd Previous Odd Question 19 Which option to the mm command will allow a user to delete directories? O-1 0 O -a Question 20 Previous O-a Question 20 Which of the following commands will return only lines that begin with test? Ogrep 'test' file.txt O grep [test]' file.txt Ogrep 'test' file.txt O grep Stent file.txt Ounctinn 21 Previous