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From "Murukesh Mohanan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-9430) Add startup options to cqlshrc
Date Mon, 28 Aug 2017 04:19:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16143349#comment-16143349
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Murukesh Mohanan commented on CASSANDRA-9430:
---------------------------------------------

(Just a note to anybody interested in implementing this.) If this were to be implemented with
an option like Python's {{-i}}, I still wouldn't expect {{echo  "paging off;" | cqlsh -i}}
to give me an interactive shell. That would require {{cqlsh}} to detect whether it is connected
to a TTY (since stdin naturally would be from the pipe), then provide a prompt on that TTY,
and read from that TTY. That could be done ({{sudo}} is a command which does that), but it
would be quite hacky. I think it would be best if cqlsh didn't try to play guessing games
with stdin, and simply take it as given. Reading from a file given as an option argument is
a different case, of course.

> Add startup options to cqlshrc
> ------------------------------
>
>                 Key: CASSANDRA-9430
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9430
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Jeremy Hanna
>            Priority: Minor
>              Labels: cqlsh, lhf
>
> There are certain settings that would be nice to set defaults for in the cqlshrc file.
 For example, a user may want to set the paging to off by default for their environment. 
You can't simply do
> {code}
> echo "paging off;" | cqlsh
> {code}
> because this would disable paging and immediately exit cqlsh.
> So it would be nice to have a section of the cqlshrc to include default settings on startup.



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