Sort contents of a file By date

[Zaid Anwer]

Hi,

I have a query :-

Is there any command or link that could help me to sort the content of a
file by date.

File has couple of thousands lines every line starts with
timestamp(Date,Time) and then Log information.

It has some duplicate lines as well that has only timestamps same, I want to
remove the duplicate lines that has same time stamps.

Thanks in advance.
Regards,
Zee
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