Unix - Study Mode

[#586] Any command using standard input can take the input from here document.
Correct Answer

(A) True

[#587] If rmdir dir001 fails, what could be the reason(s)?
Correct Answer

(D) dir001 doesn't exist, dir001 is not empty and permissions of dir001 doesn't allow to remove it

[#588] We can use comparison operators without a '-'.
Correct Answer

(B) False

[#589] The entire process life cycle is built around . . . . . . . . system calls.
Correct Answer

(B) 4

[#590] The following command will match the lines beginning with '2'. $ grep “^2” emp.lst
Correct Answer

(A) True