Question: type the following: $ grep dough breadIsDangerous.txt $ echo $ ? $ grep uniqueString breadIsDangerous.txt $ echo $ ? $ grep dough noSuchFile $ echo

type the following:
$ grep dough breadIsDangerous.txt
$ echo $?
$ grep uniqueString breadIsDangerous.txt
$ echo $?
$ grep dough noSuchFile
$ echo $? Explain the different return values (the man page for grep might help).

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