UC3M

In your home directory, create the same folder structure that is shown in the figure (only the folders). You must use the mkdir command several times, but you must execute it without changing the folder, that is, executing the commands always from your home directory /home/teleco (check the options of the mkdir command in the manual.

Change the directory in the command interpreter and go to the Section1 folder. Remember that while you are typing the name of a file or a folder, the TAB key completes that name. Once in the Section1 folder, invoke from the command line the kate editor. Insert in the file the sentence “This is the content of file 1” and store it with name file1.txt as shown in the figure.

Repeat the same steps with file2.txt but instead of creating it entirely with the editor, first create a duplicate of file file1.txt with name file2 with the cp command. Open the new file with the editor and modify the text to say “... of file 2”.

Repeat this last step, but now you have to create the files file3.txt and file4.txt. Execute the appropriate commands in the interpreter (creating a duplicate and edition using kate) without changing the working directory. You must, then, use the paths to the new files such that they reflect the new location in the folder hierarchy.

Change the working directory in your interpreter wwith a single command to go to the SecondPart folder. Execute now the appropriate commands to create a duplicate of any of the four files previously created and modify its content similar to what you have done in the previous section. Again, you should not change your working directory. Remember that while you type the file and folder names, the TAB key may be useful to complete their names.

Finally, we do not want the Section2 folder to be at that level, but at the level of the FirstPart and SecondPart folders. Thus, from the top directory LinuxLab execute a single command that moves the Section2 folder to its new location with name ThirdPart.

Read the manual page for the cat command and use it to show the content of all the files in the previous exercise on the screen with a single command.

Read the manual page for the cp command and create, with a single command, a duplicated of the file tree with which you have been working.

Read the manual page for the rm command and delete the duplicate of the files you just created with just one command.

Read the manual page for the ls command and execute it in the LinuxLab folder. Use the options -a, -l and -t. Try to write them all together to see the result.

Use the chmod command to chante the permissions in one file. Try to change separatedly the user, group and other permissions. Use the ls command with the appropriate options to see the changes.