Scripting Languages

question 2

Type the following commands at a terminal prompt to create a practice file cat > Newfile.txt The black cat was chased by the black dog. The black cat was not chased by the black dog. # Ctrl-D to exit the cat command and close the file Using the sed command what will you type to change the color of the dog to brown in all occurrences. Note: Once you figure out the command, make sure to run $cat Newfile.txt to check if the word black has been changed to brown.

question 3

Use the same file (Newfile.txt) you created in question 4 .

What command (Select all possible from the list below) will you write to create a backup of the same file (Newfile.txt) named Newfile.txt.bk?

bk -file Newfile.txt Newfile.txt.bk

cat Newfile.txt > Newfile.txt.bk

cp Newfile.txt Newfile.txt.bk

tar -f Newfile.txt Newfile.txt.bk