GNU bug report logs - #28468
Bug in wc -l found

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "Weidner, Robert (I/EE-31, extern)" <extern.robert.weidner <at> audi.de>
To: "bug-coreutils <at> gnu.org" <bug-coreutils <at> gnu.org>
Subject: Bug in wc -l found
Date: Fri, 15 Sep 2017 09:03:24 +0000

[Message part 1 (text/plain, inline)]

Dear GNU Team,

seems I found a bug in wc, have a look:

[cid:image001.png <at> 01D32E12.3F5A7C20]

Despite of it, I really want to say a BIG Thank you for great tool-set, especially tree, which I use for 20 years now!

THX
Rob


Mit freundlichen Gruessen

Robert Weidner
FAS Architektur / zFAS Plattform Test

BFFT Gesellschaft für Fahrzeugtechnik mbH

Im Auftrag der AUDI AG
I/EE-31, extern
85045 Ingolstadt
M: +49 (0) 1520-3427 961
mailto:extern.robert.weidner <at> audi.de
www.audi.com<http://www.audi.com/>

Dr.-Ludwig-Kraus-Straße 2,  85080 Gaimersheim, Headquarter 3.OG

BFFT Gesellschaft für Fahrzeugtechnik mbH | Dr.-Ludwig-Kraus-Straße 2 | 85080 Gaimersheim
GmbH mit Hauptsitz in Gaimersheim | AG: Ingolstadt - HRB 2775
Geschäftsführung: Markus Fichtner, Michael Mittag | UST-Id Nr. DE 812 875 182

[Message part 2 (text/html, inline)]

[image001.png (image/png, inline)]

[monitore-serNr_all-run2.txt (text/plain, attachment)]

Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Ruediger Meier <sweet_f_a <at> gmx.de>
To: bug-coreutils <at> gnu.org
Cc: 28468 <at> debbugs.gnu.org, "Weidner, Robert \(I/EE-31,
 extern\)" <extern.robert.weidner <at> audi.de>
Subject: Re: bug#28468: Bug in wc -l found
Date: Fri, 15 Sep 2017 17:50:25 +0200

On Friday 15 September 2017, Weidner, Robert (I/EE-31, extern) wrote:
> Dear GNU Team,
>
> seems I found a bug in wc, have a look:
>
> [cid:image001.png <at> 01D32E12.3F5A7C20]
>
> Despite of it, I really want to say a BIG Thank you for great
> tool-set, especially tree, which I use for 20 years now!

This is not a bug. wc -l only counts newlines but the last line of your 
input file does not end with a newline, see
 
https://unix.stackexchange.com/questions/314256/wc-l-not-returning-correct-value/314258#314258


cu,
Rudi

Message #16 received at 28468-done <at> debbugs.gnu.org (full text, mbox):

From: Assaf Gordon <assafgordon <at> gmail.com>
To: "Weidner, Robert (I/EE-31, extern)" <extern.robert.weidner <at> audi.de>,
 28468-done <at> debbugs.gnu.org
Subject: Re: bug#28468: Bug in wc -l found
Date: Fri, 15 Sep 2017 09:55:16 -0600

tag 28468 notabug
stop

Hello Rob,

On 2017-09-15 03:03 AM, Weidner, Robert (I/EE-31, extern) wrote:
> seems I found a bug in wc, have a look:

[[
the attach screen shot shows:
    $ wc -l monitore-serNr_all-run2.txt
    16
while the attached file appears to have 17 lines.
]]

This is not a bug, but the expected behavior.
The file you attached does not have a '\n' character
at the end of the last line.

Technically, 'wc' counts the number of '\n' characters,
not the number of appeared lines.

This is explained here:
   http://www.pixelbeat.org/docs/coreutils-gotchas.html#wc


As such, I'm marking this as not-a-bug, but discussion can
continue by replying to this thread.

regards,
 - assaf

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