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root:$6$xld94ij$BW0RfSx9WLNAWia7D5PQwx/dNnhTgy8f3W6/vobqEmmhVUISZoL5EwrF8RTXA8xRztRGtUjLzxyBnUqVoJk7Z.:18474:0:99999:7:::
user1:$6$du065TO$9v6.LU3F8JbLVQ7FEQEfkrQ.Zd8dxR.Vl5ohZ9uiXG4lF8k1OHkRTrqtzc5RpaC2mvM5KpIe7YH2zUL3MOUEO1:18474:0:99999:7:::

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import crypt
import getpass

def validate_password(username, password):
    with open('/etc/shadow', 'r') as f:
        for line in f:
            if line.startswith(username + ':'):
                shadow_entry = line.split(':')
                encrypted_password = shadow_entry[1]
                salt = encrypted_password.split('$')[2]
                new_encrypted_password = crypt.crypt(password, '$6$' + salt + '$')
                if new_encrypted_password == encrypted_password:
                    return True
                else:
                    return False
    return False

username = input("Enter username: ")
password = getpass.getpass("Enter password: ")

if validate_password(username, password):
    print("Password is correct. Logging in...")
else:
    print("Password is incorrect. Please try again.")

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