Linux

Using the vi editor: 1.- Create a document named doc01.txt with 10 lines each containing the sentence "Yesterday was the day." Write the sentence only one time 2.- Save the file doc01.txt and exit vi 3.- Create a document named doc02.txt with 10 lines each containing the sentence "Today is the day." Write the sentence only one time. 4.- Add the file doc01.txt at the beginning of file doc02.txt. 5.- Save the doc02.txt as doc03.txt 6.- In the document doc03.txt replace the word "Yesterday" by "Today" and the word "was" by the word "is" 7- Save the file doc03.txt and exit vi