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$ cd . . is used to move ___ level up in the file hierarchy.

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$ cd  . .  is used to move ___ level up in the file hierarchy.

(a) two

(b) one

(c) three

(d) zero

The question was posed to me in an international level competition.

My question comes from Absolute and Relative Pathnames in portion The File System of Unix

1 Answer

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Best answer
Right choice is (b) one

For explanation: ( . . ) two dots represent the parent directory. So cd . . will make us move one level up. For example,

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