1) Extract every word from websters.txt that contains the string apple, and put it into a new file called apple.txt.
$ pwd
/home1/0003/train332
$ cd IntroToLinuxHPC/Lab01
$ grep "apple" websters.txt > apple.txt
2) Extract every word from websters.txt that contains the string carrot, and put it into a new file called carrot.txt.
$ grep "carrot" websters.txt > carrot.txt
3) Extract every word from websters.txt that contains the string cheese, and put it into a new file called cheese.txt.
$ grep "cheese" websters.txt > cheese.txt
4) Examine the contents of apple.txt, carrot.txt, and cheese.txt to make sure they contain what you expect.
$ cat apple.txt # Different methods of examining file contents are appropriate depending
$ more carrot.txt # on the size of the file. Try different combinations to see what works.
$ less cheese.txt
5) Concatenate all three lists into a new file called food.txt.
$ cat apple.txt > food.txt # this will create the file 'food.txt' if it does not yet exist
$ cat carrot.txt >> food.txt # Double >> to append, not overwrite
$ cat cheese.txt >> food.txt
$ more food.txt
6) Advanced Linux users: can you do all of the above, and alphabetize the output in one command?
$ grep -E 'apple|carrot|cheese' websters.txt | sort > food.txt