Exercises

Now that you have spent some time exploring various aspects of the filesystem, try out the following exercises to reinforce your understanding:

1. Calculate the size of all files under the /etc directory.

2. Create a file called story.txt containing the following line of text:

    The quick brown fox jumps over the lazy dog 

   Use the sed command to change the contents of the file to the following:

    The quick brown dog jumps over the lazy fox 

3. Use the find command to list files that are greater than 500KB in size created by users of the system.