-O      Use the original SCP protocol for file transfers instead of the SFTP protocol.  Forcing the use of the SCP protocol may be necessary for servers that do not implement SFTP, for backwards-compatibility for particular
             filename wildcard patterns and for expanding paths with a ‘~’ prefix for older SFTP servers.


     Since OpenSSH 8.8 (8.7 in Red Hat/Fedora builds), scp has use the SFTP protocol for transfers by default.


【 在 arithboy 的大作中提到: 】
: debian 11 没有问题, man里具体哪句话说的啊?
: user@xa1:/dev/shm/aa$ ssh -V
: OpenSSH_8.4p1 Debian-5+deb11u1, OpenSSL 1.1.1n  15 Mar 2022
: ...................
--
FROM 220.248.229.*