[debbugs-tracker] bug#30550: closed (zgrep over multiple files returns 1 if pattern not found in a single file even if found in other files)

[GNU bug Tracking System]

Your message dated Wed, 21 Feb 2018 11:31:47 -0800
with message-id <address@hidden>
and subject line Re: bug#30550: zgrep over multiple files returns 1 if pattern 
not found in a single file even if found in other files
has caused the debbugs.gnu.org bug report #30550,
regarding zgrep over multiple files returns 1 if pattern not found in a single 
file even if found in other files
to be marked as done.

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30550: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=30550
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--- Begin Message --- Subject: zgrep over multiple files returns 1 if pattern not found in a single file even if found in other files Date: Tue, 20 Feb 2018 15:01:05 +0000 (UTC)

grep version: 2.20

zgrep version: 1.5

$cat test1

hello

$cat test2

goodbye

$cat test3

goodbye

$cat test4

goodbye

$grep "hello" test1     #works as expected

hello

$echo $?

0

$grep "goodbye" test1     #works as expected

$echo $?

1

$grep "hello" *    #works as expected. gets line from test1 and returns 0

test1:hello

$echo $?

0

$grep "goodbye" *    #works as expected. gets lines from test2, 3, and 4 and returns 0

test2:goodbye

test3:goodbye

test4:goodbye

$echo $?

0

despite stating zgrep works the same as grep, the return codes over multiple files are different

$zgrep "hello" test1     #works as expected

hello

$echo $?

0

$zgrep "goodbye" test1     #works as expected

$echo $?

1

$zgrep "hello" *    #does NOT work as expected. gets line from test1 and returns 1. grep states that if ANY line is found, 0 will be returned

test1:hello

$echo $?

1

$zgrep "goodbye" *    #does NOT work as expected. gets lines from test2, 3, and 4 and returns 1. grep states that if ANY line is found, 0 will be returned

test2:goodbye

test3:goodbye

test4:goodbye

$echo $?

1

$zgrep "goodbye" test2 test3 test4    #works as expected. finds pattern in all files and returns 0. bug only occurs if files exist where the pattern is not found

test2:goodbye

test3:goodbye

test4:goodbye

$echo $?

0

--- End Message ---

> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#30550: zgrep over multiple files returns 1 if pattern not found in a single file even if found in other files
>
>
>
>
> Date: 
>
> Wed, 21 Feb 2018 11:31:47 -0800
>
>
>
>
> User-agent: 
>
> Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0
>
>
>
>
> On 02/20/2018 07:01 AM, David McCauley wrote:
> > zgrep version: 1.5
>
> That's pretty old. The bug should be fixed in the current zgrep version 
> (1.9). See:
>
> https://bugs.gnu.org/17760
>
>
>
> --- End Message ---