Or better see https://superuser.com/questions/163167/when-sshing-how-can-i-set-an-environment-variable-on-the-server-that-changes-f
...you can pass information in the TERM environment variable, which is always copied (there may be a length limit however). You'll still have to make sure that the remote shell doesn't restrict the TERM variable to designate a known terminal type. Pass the -t option to ssh if you're not starting a remote interactive shell. env TERM="extra information:$TERM" ssh -t server.example.com 'MYVAR=${TERM%:*}; TERM=${TERM##*:}; export MYVAR; mycommand' -y On Mon, Jun 11, 2018 at 9:49 AM, yary <not....@gmail.com> wrote: > You may have an alternate way of setting PS1 at the client, though the > server may be configured to ignore it. The ssh man page says this on my > system: > > Additionally, ssh reads ~/.ssh/environment, and adds lines of the format > ``VARNAME=vale'' to the environment if the file exists and users are > allowed to change their environment. For more information, see the > PermitUserEnvironment option in sshd_config(5). > > > -y > > On Mon, Jun 11, 2018 at 9:29 AM, Michael Albinus <michael.albi...@gmx.de> > wrote: > >> John Collins <coll...@braincorporation.com> writes: >> >> > Hello, >> >> Hi John, >> >> > Happy (mostly) tramp user here that is also very new to it. As someone >> > working with remote machines that I do not own or control, TRAMPs >> > inability to handle fancy prompts is highly crippling. It's stated in >> > the FAQ that "tramp needs a clean recognizable prompt on the remote >> > host for accurate parsing". What I don't understand is why tramp can't >> > set PS1 when logging in the typical way one does: >> > >> > ssh ... -t 'PS1='$'; bash -i' >> > >> > When I modify tramp-maybe-open-connection to do this it works just >> > fine; I'm able to login to a remote that would hang with the message: >> > >> > Tramp: Waiting for prompts from remote shell...fail >> > >> > I figure there is a good reason this can't be done, but wanted to >> > raise the issue just in case. >> >> ssh does not allow this kind of environment passing. Try in your local >> shell >> >> --8<---------------cut here---------------start------------->8--- >> # ssh localhost "PS1='$ '; /bin/sh" >> --8<---------------cut here---------------end--------------->8--- >> >> or >> >> --8<---------------cut here---------------start------------->8--- >> # ssh localhost "/usr/bin/env PS1='$ ' /bin/sh" >> --8<---------------cut here---------------end--------------->8--- >> >> It doesn't work. Therefore, Tramp cannot use this mechanism. >> >> Instead, Tramp recommends to adapt the remote prompt by something like >> this in the remote ~/.profile: >> >> --8<---------------cut here---------------start------------->8--- >> [ $TERM = "dumb" ] PS1='$ ' >> --8<---------------cut here---------------end--------------->8--- >> >> > Regards, >> > >> > John C. >> >> Best regards, Michael. >> >> _______________________________________________ >> Tramp-devel mailing list >> Tramp-devel@gnu.org >> https://lists.gnu.org/mailman/listinfo/tramp-devel >> > >
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