Need help to get the step by step output of these questions. Please i need all step with the output. (unix question)

2. Redirect standard output of echo to write the message "This is a test" to a file called file7 and then use cat to display the contents of the file. 3. Redirect standard input to cat to come from the file you created in the previous step. Do not redirect standard output from cat; it will appear on the screen 4. Redirect the output of an Is -la command to a file named ls.out. Display ls.out using cat