Ssh is a very very useful tool and some tricks with it will help you a lot of time and typing. For example I want to transfer a file remote like my ssh-key file. I have a few options:
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use scp to transfer the file, then login into the remote system and execute the commands.
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use a different mechanism to transfer the files(ftp etc), login and execute the commands.
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do it all in one command ... this is the cool one - see bellow
shell$ cat ~sd/.ssh/id_rsa.pub | ssh root@192.168.0.105 'cat - > .ssh/authorized_keys' shell$ cat ~sd/.ssh/id_rsa.pub | ssh root@192.168.0.105 'cat - > .ssh/authorized_keys2' # usually the authorized_keys is a link to authorized_keys2 but in this I just have two separate files. # as you can see is nothing else to do :)
