从 ssh private key 中重新生成 public key

风吹草动 2019-10-31

Use the -y option to ssh-keygen:

ssh-keygen -f ~/.ssh/id_rsa -y > ~/.ssh/id_rsa.pub

From the ‘man ssh-keygen‘

-y This option will read a private OpenSSH format file and print an OpenSSH public key to stdout.

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