Hello!

Given a text-file "sort.but.txt" with find-output like this:

07. Feb 2015 15:57 ./mess.jpg

05. Mär 2015 13:30 ./mess.jpg

Basically two columns: a date and a filename

I want sort to discard the duplicate lines for the same file using -u to keep only the first and -k to skip over the date column

> sort sort.bug.txt -u -s -k 1.20 --debug

sort: es werden die Sortierregeln für »de_DE.UTF-8“ verwendet

sort: führende Leerzeichen sind signifikant in Schlüssel 1: Sie sollten daher

wahrscheinlich auch „b“ angeben

05. Mär 2015 13:30 ./mess.jpg

___________

07. Feb 2015 15:57 ./mess.jpg

__________

As the underlines in debug mode show, the keys start position depends on whether the month name contains pure ASCII or the German Umlaut ä.

There's a hint coming up, to apply option -b as this one character offset could possibly be overcome thanks to the separating whitespace between the columns.

> sort sort.bug.txt -u -s -k 1.20 -b --debug

sort: es werden die Sortierregeln für »de_DE.UTF-8“ verwendet

05. Mär 2015 13:30 ./mess.jpg

__________

07. Feb 2015 15:57 ./mess.jpg

__________

In fact, it does correct the underlines, but still -u gives both lines, though I want it to discard the second line. You can add more lines for the same file, but sort insists on keeping exactly two: one with Umlaut and the other without.

This is: sort (GNU coreutils) 8.23

Thanks for the great utilities.

Holger

--

|_|/ MfG

| |\ Holger Klene

PGP Key ID: 0x22FFE57E