How to remove duplicate lines from a text file using awk or perl on Linux | Linux Today

How to remove duplicate lines from a text file using awk or perl on Linux

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A
Anonymous
Mar 21, 2016

I have a text file with exact duplicates of lines. I need to remove all those duplicates lines and preserves the order too on Linux or Unix-like system. How do I delete duplicate lines from a text file?

A

Anonymous

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