Exam XK0-005 topic 1 question 63 discussion

A. source ~/.bashrc The source command is used to re-read a shell configuration file and make its changes effective immediately in the current shell session. In this case, the administrator made changes to the ~/.bashrc file and added an alias command, but the alias is not working. To make the changes in the ~/.bashrc file effective, the administrator should run the following command: source ~/.bashrc his will cause the shell to re-read the ~/.bashrc file and apply the changes, including the new alias. After running this command, the administrator should be able to use the alias as expected. Option B is incorrect because the read command is used to read input from the user, not to re-read a configuration file. Option C is incorrect because the touch command is used to update the modification time of a file, not to re-read a configuration file. Option D is incorrect because the echo command is used to display text on the screen, not to re-read a configuration file.