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## displaylastparam
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### Instructions
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Write a program that displays its last argument, if there is one.
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### Usage
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```console
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student@ubuntu:~/displaylastparam/test$ go build
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student@ubuntu:~/displaylastparam/test$ ./test hello there
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there
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student@ubuntu:~/displaylastparam/test$ ./test "hello there" how are you
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you
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student@ubuntu:~/displaylastparam/test$ ./test "hello there"
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hello there
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student@ubuntu:~/displaylastparam/test$ ./test
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student@ubuntu:~/displaylastparam/test$
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```
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