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ls vrs echo The "ls" and "echo" commands in Linux are used for different purposes when it comes to viewing files and directories. "ls" Command: The "ls" command is used to list the files and directories in the current working directory or in a specific directory that you specify. When you run the "ls" command, it will display a list of all files and directories in the specified location, along with their respective permissions, ownership, and modification times. You can also use different options with the "ls" command to sort the output, display file sizes, and more. "echo" Command: The "echo" command is used to display a string of text on the command line or to redirect it to a file. It is not specifically designed to display files and directories, although you can use it to display the names of files and directories if you specify them in the command. For example, if you run the command "echo *.txt...