cygwinでssh接続 ref: http://qiita.com/aratakokubun/items/eaf4542746decb2f1110

file0.txt

:~/.ssh$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/art/.ssh/id_rsa): id_rsa_file_name
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
...

file1.txt

ssh-agent -s
ssh-add -l

file2.txt

eval `ssh-agent -s`
ssh-add -l