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Added < and > to list of quesitons. (#132)

* Added two questions

Added in > and < for Linux, as well as yes command (yes XYZ repeats XYZ in the console, useful for repetitive input)
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@ -2513,6 +2513,13 @@ These are files directly not displayed after performing a standard ls direct lis
`ls -a`
</b></details>
<details>
<summary>What do > and < do in terms of input and output for programs?</summary><br><b>
They take in input (<) and output for a given file (>) using stdin and stdout.
`myProgram < input.txt > executionOutput.txt`
</b></details>
<details>
<summary>Explain what each of the following commands does and give an example on how to use it: