Which option is used by vi editor to open a file in read mode only?(a) -r(b) -R(c) -d(d) -fThe question was posed to me in an interview.My doubt is from Vi Basics and Modes in portion The Vi Editor of Unix

Which option is used by vi editor to open a file in read mode only?(a)

1.	Which option is used by vi editor to open a file in read mode only?(a) -r(b) -R(c) -d(d) -fThe question was posed to me in an interview.My doubt is from Vi Basics and Modes in portion The Vi Editor of Unix
Answer» Correct CHOICE is (B) -R To EXPLAIN: To open an existing file in read-mode only, -R is used with the filename (as an argument). For EXAMPLE,

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