/sort

sort

sort

sort – sort or merge records (lines) of text and binary files

file.txt

362130
637216
632163
859485
057328
637213
647326
632163
057328
536215
536215
467326
785437
file.txt sort

Output console

057328
057328
362130
467326
536215
536215
632163
632163
637213
637216
647326
785437
859485
-u, --unique
             Unique keys.  Suppress all lines that have a key that is equal to an already processed one.  This option, similarly to -s, implies a
             stable sort.  If used with -c or -C, sort also checks that there are no lines with duplicate keys.

Executing with u flag

sort -u file.txt
057328
362130
467326
536215
632163
637213
637216
647326
785437
859485