github ssh key的SHA256是什么

怎么知道github上自己的公钥指纹和本地的公钥是否一致？

计算方法如下：

cat .ssh/id_rsa.pub    |
    awk '{ print $2 }' | # Only the actual key data without prefix or comments
    base64 -d          | # decode as base64
    sha256sum          | # SHA256 hash (returns hex)
    awk '{ print $1 }' | # only the hex data
    xxd -r -p          | # hex to bytes
    base64               # encode as base64