Unix
Which command is used with vi editor scroll half page backward?

None of these
[Control-c]
[Control - u]
[Control-d]
[Control -P]

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Unix
The % key allows you

to move the cursor to a matching delimiter, when a delimiters a parenthesis, a bracket, or a brace.
to move the cursor backward to the beginning of a word
to move the cursor to the first column in the current line
to move the cursor to the upperleft corner of the screen

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