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Shane Stillwell
Asked: 2010-08-17 05:54:35 +0800 CST

Looking for a one step solution to appending my SSH public key to a server's authorized_keys?

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To get my public key onto a server I normal copy the contents of my public key, then SSH into the server, then I run vi .ssh/authorized_keys, then paste my key into the file and save.

There has got to be an easier, one step way using SCP or something like that. Of course I want to append my key to authorized_keys, not overwrite it and the permissions of authorized_keys needs to remain at 600

ssh public-key

4 Answers

  1. Best Answer

    You can also try this one liner:

    cat ~/.ssh/id_rsa.pub | ssh user@remote-system 'umask 077; cat >>.ssh/authorized_keys'
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  2. I would suggest looking into the ssh-copy-id tool, for example:

    ssh-copy-id -i .ssh/id_rsa [email protected]

    More on:

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  3. ssh-copy-id is a script that will do exactly what you want: http://linux.die.net/man/1/ssh-copy-id

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  4. you could also get copymyid from here. Its a command line application designed to be a replacement for ssh-copy-id on osx. The app appends the specified pub file to your server.

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