Mastering Linux Shell Scripting

Chapter 8

1. None. Because you are searching for Sed with a capital letter which does not exist
2. None. The delete command d only deletes lines from the stream, not the file. To delete from the file, you can use the -i option.
3. Fourth line. Because we used append command a, it will be inserted after the specified position.
4. None, because the w flag is only used with the substitute command s.