sort -u file1 > file2This will read file1 sort it and remove duplicate lines, placing the result in file2. The -u option stands for "unique".
Computer Tips - bash: How can I remove duplicate lines from a file
Date: 2013dec1
Update: 2025jul2
Language: bash
OS: Linux
Q. bash: How can I remove duplicate lines from a file
A. Use the -u option of `sort`: