thresh@snowwhite ~ $ ssh-agent
SSH_AUTH_SOCK=/tmp/ssh-aruNq18086/agent.18086; export SSH_AUTH_SOCK;
SSH_AGENT_PID=18087; export SSH_AGENT_PID;
echo Agent pid 18087;
thresh@snowwhite ~ $ SSH_AUTH_SOCK=/tmp/ssh-aruNq18086/agent.18086; export SSH_AUTH_SOCK;
thresh@snowwhite ~ $ SSH_AGENT_PID=18087; export SSH_AGENT_PID;
thresh@snowwhite ~ $ echo Agent pid 18087;
Agent pid 18087
thresh@snowwhite ~ $ ssh-add
Identity added: /home/thresh/.ssh/id_dsa (/home/thresh/.ssh/id_dsa)
thresh@snowwhite ~ $ ll .ssh/id_dsa
-rw------- 1 thresh thresh 668 Июл 23 19:19 .ssh/id_dsa
thresh@snowwhite ~ $ ssh foo.tld
thresh@foo.tld's password:
ssh: Permission denied, please try again.
thresh@foo.tld's password:
thresh@snowwhite ~ $