Re: Passing string into stdin of screen

To pass a command to a screen session to be intrepreted from stdin use the
following:

screen -X stuff "echo hello^M"

However make sure to generate the ^M by pressing Ctrl-V Enter.



On Wed, Dec 22, 2010 at 2:35 PM, wcjh <[email protected]> wrote:

>
> I'm using 'screen' as a terminal emulator to communicate to a serial
> device.
> However, I would like to script communication with this device.
> Does anyone know how I can either:
> 1. start a screen terminal with a command line argument that will be
> interpreted as stdin,
> or
> 2. Pass a string into stdin of a running screen session?
>
> My thought for option #2 was to use a combination of 'screen -X' and 'eval
> STR', where STR is the string I want to pass in. However, none of the
> following combinations were successful:
> screen -X "eval STR"
> screen -X "colon eval STR"
> screen -X "colon"; screen -X eval STR"
> screen -X "exec EXECUTABLE_SCRIPT_FILE"
>
> Does anyone have any suggestions on how to correctly accomplish the above
> task?
> Any suggestions about how I can pass strings directly into the serial
> device
> would also be welcomed.
>
> Thank you,
> William
>
> --
> View this message in context:
> http://old.nabble.com/Passing-string-into-stdin-of-screen-tp30516794p30516794.html
> Sent from the Gnu - Screen mailing list archive at Nabble.com.
>
>
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>

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