Sz.exe

-y : Instructs the receiver to overwrite existing files with the same name unconditionally.

-+ : Appends the transmitted data to the end of an existing file on the receiving end. Common Use Cases sz.exe

: sz can run in a "restricted mode," limiting transfers to specific directories for security. Modern Alternatives -y : Instructs the receiver to overwrite existing

The primary purpose of sz is to initiate a "send" operation. When you execute it on a remote server, it communicates with a compatible terminal emulator (like SecureCRT , PuTTY , or KiTTY ) on your local machine to automatically trigger a download. sz.exe