[bug #61664] Messy output using xargs -P

[Kirill Zhdanov]

URL:
  <https://savannah.gnu.org/bugs/?61664>

                 Summary: Messy output using xargs -P
                 Project: findutils
            Submitted by: storenth
            Submitted on: Пн 13 дек 2021 05:04:57
                Category: xargs
                Severity: 3 - Normal
              Item Group: Wrong result
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: 4.7.0
         Discussion Lock: Any
           Fixed Release: None

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Details:

*Steps to reproduce*:
1. Call the next line:
xargs -P10 -n1 -I {} grep -oiE "^https?://(([[:alnum:][:punct:]]+)+)?{}="
./filtered_fetched_list.txt < ./params-list.txt | sort -u | head -n 10

*Expected result*: output entries contains http(s) start with string.
*Actual behavior*: output entries doesn’t contain http(s)
*Workaround*: using xargs with process count by default (without -P argument).



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File Attachments:


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Date: Пн 13 дек 2021 05:04:57  Name: xargs-p-issue.png  Size: 423КиБ  
By: storenth

<http://savannah.gnu.org/bugs/download.php?file_id=52490>
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Date: Пн 13 дек 2021 05:04:57  Name: params-list.txt  Size: 19КиБ  
By: storenth

<http://savannah.gnu.org/bugs/download.php?file_id=52491>
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Date: Пн 13 дек 2021 05:04:57  Name: xargs-without-p.png  Size: 483КиБ
  By: storenth

<http://savannah.gnu.org/bugs/download.php?file_id=52492>
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Date: Пн 13 дек 2021 05:04:57  Name: filtered_fetched_list.txt  Size:
66КиБ   By: storenth

<http://savannah.gnu.org/bugs/download.php?file_id=52493>

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  <https://savannah.gnu.org/bugs/?61664>

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