You can use the Linux shell to remove duplicate lines from a file, as demonstrated in a brief tutorial by TecAdmin.
Linux Shell: Remove Duplicate Lines from File
Bash is one of the most popular shells and is used by many Linux users. One of the great things you can do with Bash is removed duplicate lines from files. It’s a great way to declutter a file and make it look cleaner and more organized. This can be done with a simple command.
