sftp(1) on OpenBSD
The text 136f1d543868, as OpenBSD 7.6, OpenBSD 7.5, OpenBSD 7.4, OpenBSD 7.3 shipped it.
OpenSSH secure file transfer
Flags it lists
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-4 -
-6 -
-A -
-B -
-C -
-D -
-F -
-J -
-N -
-P -
-R -
-S -
-X -
-a -
-b -
-c -
-f -
-i -
-l -
-o -
-p -
-q -
-r -
-v