Home News Removing duplicate lines with awk ‘!visited[$0]++’ explained By Lazarus Lazaridis June 7, 2019 How to remove duplicate lines of a file in Linux without sorting or changing their order (awk one-liner explained). Complete Story Facebook Twitter Linkedin Email Print Previous articleHow to Install Lutris on Debian 10 Buster Next articleLine Length Limits in the Kernel Get the Free Newsletter! Subscribe to Developer Insider for top news, trends, & analysis Email Address By subscribing, you agree to our Terms of Use and Privacy Policy. Subscribe Must Read Developer How to Debloat (or Swap) an Ubuntu System (Ultimate Guide) Security 6 Best Free and Open-Source Web Application Firewalls Security Clonezilla Live Is Now Patched Against the XZ Backdoor, Powered by Linux 6.7 News Pop!_OS’s COSMIC Pre-Alpha Shows Impressive Progress News Volla Tablet Launches on Kickstarter with Support for Ubuntu Touch