Unix
Which command is used to remove the read permission of the file 'note' from both the group and others?

chmod go-r note
chmod go+r note
chmod go+rw note
chmod go-x note

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Unix
The ls -l command tells

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

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