sftp(1) on macOS
The text 136f1d543868, as macOS 15.6, macOS 15.5, macOS 15.4, macOS 15.3, macOS 15.2, macOS 15.1, macOS 15.0, macOS 14.6, macOS 14.5, macOS 14.4, macOS 14.3, macOS 14.2, macOS 14.1, macOS 14.0 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