How to check/confirm SSH secret key password | SSH用秘密鍵のパスワードを確かめる方法

Answer is from: stackoverfrow | How do I verify/check/test/validate my SSH password?

$ ssh-keygen -y -f <key file>

$ ssh-keygen -y -f my_key.pem

# correct password
Enter passphrase:
ssh-rsa AAAABBBBCCCCDDDDEEEEFFFF....

# wrong password
Enter passphrase:
Load key "/Users/evalphobia/.ssh/key.pem": incorrect passphrase supplied to decrypt private key

ssh-keygen has many feature…