Please help these are some questions about certain commands in the Linux Shell.

1. Search ALL files in the ~ directory (that's your home directory) and all subdirectories below ~ that contain the keyword "Hawk" (case sensitive). Make sure to print out the line number where each keyword was found within the file.

3. Search files in the /var/log directory that contain the word 'sudo' (case insensitive). Add three lines of context after each keyword found. This means your result should not just show the line containing the word, but also the proceeding three lines from the file as well.

4.Create a tar file named 'Spring.tar' that would include all the files in /var/log with the extension *.log

5. After creation, I now want to append the file Fall.log.bak to the tar archive from Question 4 above. What command would I use? 8. After creation, I now want to compress the file in Question 4 using the bzip2 compression algorithm. What command would I use?