You have spent the last two hours creating a report in a file and afterwards you use cat...

You have spent the last two hours creating a report in a file and afterwards you use cat to create a new file. Unfortunately the new file name you used was the same as the name you used for the report, and now your report is gone.What should you do next time to prevent this from happening?

a. Enter the cat -s command before you start.

b. Enter the command, set -o noclobber before you start.

c. Always use the cat -m command when you use cat to create a file, because this command checks to see if the file already exists.

d. After you created the report file you should have used the chmod a-o command to prevent the file from being deleted or overwritten.