Unable to copy ssh id rsa pub

Question

I   m following in Generating SSH Keys  it says  sudo apt-get install xclip  Downloads and installs xclip  If you don t have apt-get  you might need to use another installer  like yum   xclip -sel clip  lt     ssh id rsa pub  Copies the contents of the id rsa pub file to your clipboard But after I runxclip -sel clip  lt     ssh id rsa pub I get Error  Can t open display   null  What is the problem  I googled around but found nothing about it

User · Answer

In case you are trying to use xclip on remote host just add -X to your ssh command   ssh user host -X   More detailed information can be found here   https   askubuntu com a 305681

User · Answer

DISPLAY  0 xclip -sel clip  lt     ssh id rsa pub didn t work for me  ubuntu 14 04   but you can use    cat    ssh id rsa pub   to get your public key

User · Answer

This was too good of an answer not to post it here  It s from a Gilles  a fellow user from askubuntu      The clipboard is provided by the X   server  It doesn t matter   whether the server is headless or not  what matters is that your local   graphical session is available to programs running on the remote   machine  Thanks to X s network-transparent design  this is possible       I assume that you re connecting to the remote server with SSH from a   machine running Linux  Make sure that X11 forwarding is enabled both   in the client configuration and in the server configuration  In the   client configuration  you need to have the line ForwardX11 yes in      ssh config to have it on by default  or pass the option -X to   the ssh command just for that session  In the server configuration    you need to have the line X11Forwarding yes in    etc ssh sshd config  it is present by default on Ubuntu        To check whether X11 forwarding is enabled  look at the value of the   DISPLAY environment variable  echo  DISPLAY  You should see a   value like localhost 10  applications running on the remote machine   are told to connect to a display running on the same machine  but that   display connection is in fact forwarded by SSH to your client-side   display   Note that if DISPLAY isn t set  it s no use setting it   manually  the environment variable is always set correctly if the   forwarding is in place  If you need to diagnose SSH connection issues    pass the option -vvv to ssh to get a detailed trace of what s   happening       If you re connecting through some other means  you may or may not be   able to achieve X11 forwarding  If your client is running Windows    PuTTY   supports X11 forwarding  you ll have to run an X server on the Windows   machine such as Xming       By Gilles from askubuntu

User · Answer

Based on the date of this question the original poster wouldn t have been using Windows Subsystem for Linux  But if you are  and you get the same error  the following alternative works   clip exe  lt     ssh id rsa pub   Thanks to this page for pointing out Windows  clip exe  and you have to type the   exe   can be run from the bash shell

User · Answer

Have read the documentation you ve linked  That s totally silly  xclip is just a clipboard  You ll find other ways to copy paste the key     I m sure     If you aren t working from inside a graphical X session you need to pass the  DISPLAY environment var to the command  Run it like this   DISPLAY  0 xclip -sel clip  lt     ssh id rsa pub   Of course  0 depends on the display you are using  If you have a typical desktop machine it is likely that it is  0

User · Answer

Try this and it will work like a charm  I was having the same error but this approach did the trick for me   ssh USER REMOTE  cat file  xclip -i

User · Answer

The following is also working for me   ssh  lt user gt   lt host gt    cat  lt filepath gt   pbcopy

User · Answer

add by user root this command   ssh user to acces hostName -X  user to acces   user hostName   hostname machine

[linux] Unable to copy ~/.ssh/id_rsa.pub

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