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From "Glen Mazza (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KARAF-754) shell:cat hyphen ("-") option not activating STDIN.
Date Mon, 25 Jul 2011 20:50:09 GMT

    [ https://issues.apache.org/jira/browse/KARAF-754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13070747#comment-13070747
] 

Glen Mazza commented on KARAF-754:
----------------------------------

Alternatively, you can perhaps add a --stdin and/or -s option to read from STDIN (ignoring
any file URLs given if this setting is used).

> shell:cat hyphen ("-") option not activating STDIN.
> ---------------------------------------------------
>
>                 Key: KARAF-754
>                 URL: https://issues.apache.org/jira/browse/KARAF-754
>             Project: Karaf
>          Issue Type: Bug
>          Components: karaf-shell
>    Affects Versions: 2.2.2
>            Reporter: Glen Mazza
>            Assignee: Jean-Baptiste Onofré
>            Priority: Minor
>             Fix For: 3.0.0
>
>
> According to the help for shell:cat, the - is supposed to activate cat for STDIN (just
as the Linux cat command does).  However, the hyphen is being used as an argument parsing
flag and hence isn't working:
> karaf@root> cat --help
> DESCRIPTION
>         shell:cat
> 	Displays the content of a file or URL.
> SYNTAX
>         shell:cat [options] paths or urls 
> ARGUMENTS
>         paths or urls
>                 A list of file paths or urls to display separated by whitespaces 
>                 (use - for STDIN)
> OPTIONS
>         --help   Display this help message
>         -n        The number the output lines, starting at 1.
> karaf@root> shell:cat -
> Error executing command shell:cat undefined option -
> It may be sufficient to remove the STDIN option from the cat command, I'm not sure how
useful STDIN is within an OSGi command-line prompt anyway.

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