Linux ( Ubuntu) server

Q: What does the specified option -a do in the command uname -a?

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Q: What does the specified option -la do in the command ls -la?

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Q: What does the specified options -l and -e do in the command grep -l -e?

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Q: What does the specified option -n50 do in the command tail -n50?

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Q: What does the specified options update and install do in the command apt update or apt install?

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Q: What does the pipe character (|) do?

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Q: What does the double ampersand character (&&) do in the apt command?

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Q: How does the double ampersand (&&) differ from a single ampersand (&)?

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Q: What do the two greater than symbols (>>) do?

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Q: How does the two greater than symbols (>>) differ from the single greater than symbol (>)?

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For the grep command, it uses multiple criteria. Answer the following questions based on that command:

Q: What does the carat character (^) mean in the grep command?

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Q: What does the dollar sign ($) mean in the grep command?

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Q: What is the intended output (what is it meant to find) of the criteria (^cpu) mean in the grep command in plain language?

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Q: What is the intended output (what is it meant to find) of the criteria (1$) mean in the grep command in plain language?

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Q: What is the intended output (what is it meant to find) of the criteria (^$) mean in the grep command in plain language?

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Q: Running the following command without the grep command: (cat /proc/cpuinfo) yields extra results. What model of processor do you have based on this output?

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