A Linux administrator is creating a directory called CompTIA_doc and needs to switch to another location to perform some system-related tasks. Which of the following commands should the…

The correct answer is D. mkdir CompTIA_doc && cd CompTIA_doc. The && operator executes the second command only if the first command succeeds (exits with code 0). So mkdir CompTIA_doc && cd CompTIA_doc creates the directory, and only if that succeeds, changes into it. Option A uses & which runs the first command in the background before…

System Management

Question

A Linux administrator is creating a directory called CompTIA_doc and needs to switch to another location to perform some system-related tasks. Which of the following commands should the administrator use for this task?

Options

Amkdir CompTIA doc & cd CompTIA doc
Bmkdir CompTIA_doc > cd CompTIA_doc
Cmkdir CompTIA_doc || cd CompTIA_doc
Dmkdir CompTIA_doc && cd CompTIA_doc

How the community answered

(55 responses)

B
4% (2)
C
5% (3)
D
91% (50)

Explanation

The && operator executes the second command only if the first command succeeds (exits with code 0). So mkdir CompTIA_doc && cd CompTIA_doc creates the directory, and only if that succeeds, changes into it. Option A uses & which runs the first command in the background before the directory exists, causing cd to fail; it also has unquoted spaces in the names. Option B uses > which is a file redirect operator - it would redirect mkdir's output, not chain commands. Option C uses || which is the OR operator - it runs the second command only if the first one FAILS, meaning cd would only execute if mkdir failed.

Topics

#Linux commands#File system management#Command chaining#Shell operators

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