Question: 7. Write a command that will add a # character to the start of every line that does not already start with a # character

7. Write a command that will add a "#" character to the start of every line that does not already start with a "#" character 8 Write a command that will append all lines of the /etc/passwd file that contain the word "STUDENT to the end of the file 9. Write a command that will move the last word of each line to the start of the line

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