3.8.3.12 -t and -T: control pseudo-terminal allocation
The -t option ensures PuTTY attempts to allocate a pseudo-terminal at the server, and -T stops it from allocating one. These options are only meaningful if you are using SSH.
These options are equivalent to the ‘Don't allocate a pseudo-terminal’ checkbox in the SSH panel of the PuTTY configuration box (see section 4.24.1).
These options are not available in the file transfer tools PSCP and PSFTP.