A user wants to alias dir so it always returns the contents of the ls -la command. However, the user has to reset the alias with every login. Which of the following is the BEST action the user can…

The correct answer is C. echo "alias dir=ls -la" >> ~/.profile. Choice C (echo "alias dir='ls -la'" >> ~/.profile) is best because ~/.profile is sourced by login shells (bash, sh, etc.) and is the standard portable location for user-specific environment settings including aliases. Choice D uses > (overwrite) instead of >> (append), which…

System Management

Question

A user wants to alias dir so it always returns the contents of the ls -la command. However, the user has to reset the alias with every login. Which of the following is the BEST action the user can take to ensure the command is always available?

Options

Aecho "alias dir=ls -la" > /etc/profile
Becho "alias dir=ls -la" >> /etc/skel
Cecho "alias dir=ls -la" >> ~/.profile
Decho "alias dir=ls -la" > ~/.bashrc

How the community answered

(22 responses)

A
5% (1)
C
91% (20)
D
5% (1)

Explanation

Choice C (echo "alias dir='ls -la'" >> ~/.profile) is best because ~/.profile is sourced by login shells (bash, sh, etc.) and is the standard portable location for user-specific environment settings including aliases. Choice D uses > (overwrite) instead of >> (append), which would destroy the existing ~/.bashrc. Choice A writes to /etc/profile, which affects all users - inappropriate for a single user's alias. Choice B targets /etc/skel, a template directory for new users, not an executable config file.

Topics

#Shell Configuration#Linux Aliases#User Environment#File Redirection

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