Unix
The ls -l command tells

the name of the group owner of the file
All of these
who the owner of the file is
how large the file is and when the file was last modified.
None of these

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Unix
The % key allows you

to move the cursor to the upperleft corner of the screen
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 a matching delimiter, when a delimiters a parenthesis, a bracket, or a brace.

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