$.$ Question $3$ A Linux machine has a file named "types$\_$of$\_$fish.txt$".$ Which of the following commands can be used to append the word "trout" to the file contents? $1$ point echo trout $2>$ types$\_$of$\_$fish.txt echo trout $>>$ types$\_$of$\_$fish.txt echo trout $<$ types$\_$of$\_$fish.txt echo trout $>$ types$\_$of$\_$fish.txt $4.$ Question $4$ Using a linux machine, which of the