Remove Duplicate Lines from a File

[Joe Caverly]

XSORT, a command introduced in v33,
can remove duplicate lines from a text file.

R:\>type test.txt
Line 1
Line 2
Line 3
Line 4
Line 2
Line 4

R:\>xsort /d test.txt
Line 1
Line 2
Line 3
Line 4

Another example;

R:\>xsort /d test.txt > tmp9:

R:\>type tmp9:
Line 1
Line 2
Line 3
Line 4

Joe