Remove duplicate lines from files keeping the original order (one-liner explained) | Linux Today

Remove duplicate lines from files keeping the original order (one-liner explained)

Written By
LL
Lazarus Lazaridis
May 21, 2019

A post providing ways for removing duplicate lines from text files and a thorough explanation of how the awk one-liner works.

LL

Lazarus Lazaridis

Linux Today Logo

LinuxToday is a trusted, contributor-driven news resource supporting all types of Linux users. Our thriving international community engages with us through social media and frequent content contributions aimed at solving problems ranging from personal computing to enterprise-level IT operations. LinuxToday serves as a home for a community that struggles to find comparable information elsewhere on the web.

Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved

Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.