One Day One Command :-
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ac - Print statistics about users' connect time
Summary:
"ac" command will print the users' connect time details in
different formats (Total, Per day, Per user, etc..)
Example:
$ ac -- print total useage.
$ ac -p -- print indv user info
$ ac -dy -- print daily based report.
Read: man ac
Bye :)
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Bharathi S