[gentoo-user] remote ssh session does not reflect my keyboard inputs

[gentoo-user] remote ssh session does not reflect my keyboard inputs

[Mick]

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Hi All,

I am not sure how this works:

When I ssh into a Ubuntu server certain keyboard actions (like pressing the Up 
or Left arrows) are not translated on the remote box, but give ASCII 
responses; e.g. pressing Left Arrow, gives $ ^[[D which is annoying as I have 
to delete part of the command I just typed to be able to correct it.

How can I set it up so that my Gentoo keyboard presses and behaviour is 
reflected on the remote box?  Is it a matter of copying over the .bashrc file 
from the Gentoo box?
-- 
Regards,
Mick

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Re: [gentoo-user] remote ssh session does not reflect my keyboard inputs

[Ryan Sims]

On 5/7/07, Mick <michaelkintzios@gmail.com> wrote:
> When I ssh into a Ubuntu server certain keyboard actions (like pressing the Up
> or Left arrows) are not translated on the remote box, but give ASCII
> responses; e.g. pressing Left Arrow, gives $ ^[[D which is annoying as I have
> to delete part of the command I just typed to be able to correct it.
>
> How can I set it up so that my Gentoo keyboard presses and behaviour is
> reflected on the remote box?  Is it a matter of copying over the .bashrc file
> from the Gentoo box?

I *think* this is a termcap/terminfo issue rather than a bash issue.
What does 'echo $TERM' say in your ssh session?

-- 
Ryan W Sims
-- 
gentoo-user@gentoo.org mailing list

Re: [gentoo-user] remote ssh session does not reflect my keyboard inputs

[Mick]

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On Monday 07 May 2007 16:55, Ryan Sims wrote:
> On 5/7/07, Mick <michaelkintzios@gmail.com> wrote:
> > When I ssh into a Ubuntu server certain keyboard actions (like pressing
> > the Up or Left arrows) are not translated on the remote box, but give
> > ASCII responses; e.g. pressing Left Arrow, gives $ ^[[D which is annoying
> > as I have to delete part of the command I just typed to be able to
> > correct it.
> >
> > How can I set it up so that my Gentoo keyboard presses and behaviour is
> > reflected on the remote box?  Is it a matter of copying over the .bashrc
> > file from the Gentoo box?
>
> I *think* this is a termcap/terminfo issue rather than a bash issue.
> What does 'echo $TERM' say in your ssh session?

Thanks Ryan,
=================
$ echo $TERM
rxvt

$ sudo echo $TERM
rxvt
=================
which is the same like my Gentoo box.

-- 
Regards,
Mick

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Re: [gentoo-user] remote ssh session does not reflect my keyboard inputs

[Ryan Sims]

On 5/7/07, Mick <michaelkintzios@gmail.com> wrote:
> On Monday 07 May 2007 16:55, Ryan Sims wrote:
> > On 5/7/07, Mick <michaelkintzios@gmail.com> wrote:
> > > When I ssh into a Ubuntu server certain keyboard actions (like pressing
> > > the Up or Left arrows) are not translated on the remote box, but give
> > > ASCII responses; e.g. pressing Left Arrow, gives $ ^[[D which is annoying
> > > as I have to delete part of the command I just typed to be able to
> > > correct it.
> > >
> > > How can I set it up so that my Gentoo keyboard presses and behaviour is
> > > reflected on the remote box?  Is it a matter of copying over the .bashrc
> > > file from the Gentoo box?
> >
> > I *think* this is a termcap/terminfo issue rather than a bash issue.
> > What does 'echo $TERM' say in your ssh session?
>
> Thanks Ryan,
> =================
> $ echo $TERM
> rxvt
>
> $ sudo echo $TERM
> rxvt
> =================
> which is the same like my Gentoo box.
>
> --
> Regards,
> Mick

Ok, I may be a little out of my depth here, but we'll muddle through.
What does

bind -p | grep history

on each box tell you?  You could also try 'set -o history' on the box
that's giving you trouble. (I'm reneging on my idea re. termcap/info)


-- 
Ryan W Sims
-- 
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Re: [gentoo-user] remote ssh session does not reflect my keyboard inputs

[Hans-Werner Hilse]

Hi,

On Mon, 7 May 2007 23:12:31 +0100 Mick <michaelkintzios@gmail.com>
wrote:

> =================
> $ echo $TERM
> rxvt
> 
> $ sudo echo $TERM
> rxvt
> =================
> which is the same like my Gentoo box.

That doesn't matter. Question is rather whether the target machine has
an entry in its terminfo db (/usr/share/terminfo). On ubuntu, this is
provided by ncurses-base (so I would suspect it might be installed).

You can also try to set TERM to "vt102" or "vt100":
$ export TERM=vt102

But if it works this way, that would mean /usr/share/terminfo/r/rxvt is
borked. Note that there might be terminfo databases w/ higher
precedence in /etc/terminfo and /lib/terminfo.

-hwh
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Re: [gentoo-user] remote ssh session does not reflect my keyboard inputs

[Mick]

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On Tuesday 08 May 2007 12:53, Hans-Werner Hilse wrote:
> Hi,
>
> On Mon, 7 May 2007 23:12:31 +0100 Mick <michaelkintzios@gmail.com>
>
> wrote:
> > =================
> > $ echo $TERM
> > rxvt
> >
> > $ sudo echo $TERM
> > rxvt
> > =================
> > which is the same like my Gentoo box.
>
> That doesn't matter. Question is rather whether the target machine has
> an entry in its terminfo db (/usr/share/terminfo). On ubuntu, this is
> provided by ncurses-base (so I would suspect it might be installed).
>
> You can also try to set TERM to "vt102" or "vt100":
> $ export TERM=vt102
>
> But if it works this way, that would mean /usr/share/terminfo/r/rxvt is
> borked. Note that there might be terminfo databases w/ higher
> precedence in /etc/terminfo and /lib/terminfo.

I've tried bind -p | grep history and it did not work:
==========================================
$ sudo bind -p | grep history
Password:
sudo: bind: command not found
==========================================

I also tried changing the terminal once I logged in to the remote machine, but 
I am getting the same error:
==========================================
$ export TERM=vt100
$ ^[[B^[[B
==========================================

What else could I try?
-- 
Regards,
Mick

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Re: [gentoo-user] remote ssh session does not reflect my keyboard inputs

[Etaoin Shrdlu]

On Sunday 13 May 2007 21:12, Mick wrote:

> I've tried bind -p | grep history and it did not work:
> ==========================================
> $ sudo bind -p | grep history
> Password:
> sudo: bind: command not found
> ==========================================

bind is a builtin bash command, I'm not sure about how it behaves when 
invoked by sudo. However, it should work fine even when run as a regular 
user.

> I also tried changing the terminal once I logged in to the remote
> machine, but I am getting the same error:
> ==========================================
> $ export TERM=vt100
> $ ^[[B^[[B
> ==========================================
>
> What else could I try?

Could it possibly be related to the readline library and the inputrc 
file? It seems that some keys are undefined on the machine you are 
sshing to. In the case of the left arrow (but of course this holds for 
any key that is not working as expected), try 

$ bind -q backward-char

on both boxes. On my computer, it outputs 

backward-char can be invoked via "\C-b", "\eOD", "\e[D".

Of these, "\e[D" is the one that corresponds to the "left arrow" key.

If your output for the non-working computer is different, then it means 
that the left arrow key is not bound to the same function (or is not 
bound at all). This could be due to a ~/.inputrc file that redefines 
some keys. See man bash, section READLINE to get more info about 
readline. (BTW, there are *lots* of things that can be customized 
regarding readline behavior, and creating your own inputrc file can be a 
great learning experience - or at least, it was for me when I did it for 
LFS). Verify that you are using the same editing mode (usually emacs) on 
both boxes, with the command

set -o | grep '^vi\|^emacs'

Check whether the INPUTRC environment variable points to some file. On 
gentoo, bash does not read /etc/inputrc, but perhaps on ubuntu it does.

As a last resort, you can try to create your own ~/.inputrc on the ubuntu 
box and put there all the key bindings you need (using CTRL+V + key to 
find out the correct values, as suggested in the comments at the 
beginning of gentoo /etc/inputrc, or copying them directly from the 
gentoo output of bind -p).
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Re: [gentoo-user] remote ssh session does not reflect my keyboard inputs

[Etaoin Shrdlu]

On Sunday 13 May 2007 23:10, Etaoin Shrdlu wrote:

> On gentoo, bash does not read /etc/inputrc, but perhaps on ubuntu it
> does.

Correction: it DOES read it on gentoo too. Sorry for the wrong info.
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