Browse - Computer Tips - How can I remove duplicate lines from a file?

Date: 2013dec1
Language: bash
OS: Linux

Q.  How can I remove duplicate lines from a file?

A.  Use the -u option of sort:

sort -u file1 > file2

This will read file1 sort it and remove duplicate lines, placing
the result in file2.

The -u option stands for "unique".