D281 Linux Foundations - Set 1 - Part 1

Correct Answer: mv

The mv command is used to move files and directories from one location to another in the Linux file system.

Correct Answer: mkdir

The mkdir command is used to create new directories in the Linux file system.

Correct Answer: rm -r

The rm -r command recursively removes a directory and all its files and subdirectories.

Correct Answer: man

The man command is used to display the manual pages for other commands and applications in Linux.

Correct Answer: man /list

Using /keyword in man pages allows a user to search for specific terms within the manual page.

Correct Answer: clear

The clear command clears the terminal screen of all text.

Correct Answer: 755

By default, new directories in Linux are created with 755 permissions, allowing the owner to read, write, and execute, while others can only read and execute.

Correct Answer: touch

The touch command is commonly used to create empty files or update file timestamps in Linux.

Correct Answer: pwd

The pwd command outputs the full directory path of the current working directory.

Correct Answer: ls -a

The ls -a command lists all files in the directory, including hidden files, which start with a period (.).

Correct Answer: grep

The grep command searches for patterns in the output of other commands or within files.

Correct Answer: Removes an empty directory

The rmdir command only removes empty directories; it cannot delete directories that contain files.

Correct Answer: *

The asterisk * is used as a wildcard to match any number of characters in filenames or commands.

Correct Answer: Changes to the parent directory

The cd .. command moves the user up one level to the parent directory.

Correct Answer: mv

The mv command can be used to move or rename files and directories.

Correct Answer: .gz

Files compressed with the GZIP utility have the .gz extension.

Correct Answer: Changes file permissions

The chmod command modifies the file permissions for the owner, group, and others.

Correct Answer: Searches for files matching specific criteria

The find command searches for files and directories based on name, size, date, and other attributes.

Correct Answer: uptime

The uptime command shows how long the system has been running along with the average system load.

Correct Answer: Disk space usage

The df command shows how much disk space is used and available on each mounted filesystem.