A systems administrator is decommissioning a user account named 'olduser' and needs to transfer ownership of all files and directories in /home/olduser to a new account named 'newuser'. The group ownership should also be changed to the 'newuser' group. Which of the following commands will accomplish this task for the directory and all of its contents?
The correct command is chown -R newuser:newuser /home/olduser. The chown command is used to change the user and/or group ownership of files and directories. The -R (or --recursive) option is crucial for operating on files and directories recursively, ensuring that the ownership of all subdirectories and files within /home/olduser is also changed. The newuser:newuser syntax specifies that both the user owner and the group owner should be set to 'newuser'. The command chown newuser:newuser /home/olduser would only change the ownership of the /home/olduser directory itself, not the files within it. The chgrp -R newuser /home/olduser command would only change the group ownership, leaving the user owner as 'olduser'. The chmod -R 755 /home/olduser command is incorrect as chmod is used to change file permissions (read, write, execute), not ownership.
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What does the '-R' option in the chown command do?
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How is the 'newuser:newuser' syntax interpreted in the chown command?
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