题目内容
Which of the following is responsible for launching Linux?
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Which command is used to extract columns from a file to work on them later?
Which of the following grep commands can be used to print out all of the lines that do not match the specified pattern?
Which commands can be used to print the lines that contain the numbers 0–5 in a file? Select all answers thst apply.
In search patterns, what is the syntax to match the end of the string?
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