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https://issues.apache.org/jira/browse/KARAF-5420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16202020#comment-16202020
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Guillaume Nodet commented on KARAF-5420:
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Calling {{grep}} or {{exec grep}} with the console input stream still does not
work well.
Unfortunately, this is not related to the {{exec}} command and it's a more
general problem.
So I'm not going to fix it now.
> Bad console behavior when dealing with the input stream for piped commands
> --------------------------------------------------------------------------
>
> Key: KARAF-5420
> URL: https://issues.apache.org/jira/browse/KARAF-5420
> Project: Karaf
> Issue Type: Bug
> Affects Versions: 4.2.0
> Reporter: Guillaume Nodet
> Assignee: Guillaume Nodet
>
> The following command behaves correctly:
> {code}
> echo foo | grep o
> {code}
> However, the following one never ends:
> {code}
> echo foo | exec grep o
> {code}
> The following ones also behaves incorrectly (enter does not print a new line,
> and Ctrl+C / Ctrl+D are not handled correctly) :
> {code}
> grep o
> {code}
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