Sz.exe Apr 2026

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.

You can modify how sz handles transfers using various flags: sz.exe

: It can be piped into other commands. For example, ls -l | sz - sends the output of a directory listing directly to your terminal as a file. The primary purpose of sz is to initiate a "send" operation

: It is highly effective for moving small files (like logs or configuration files) over an established SSH or serial session where SFTP or SCP might not be configured. For example, ls -l | sz - sends

While still available on most Linux distributions, sz is an older tool. For modern Windows environments using , some users prefer trzsz , which offers similar ZMODEM-like functionality with better support for modern terminal features. Dropped Z-MODEM support (and one alternative) #13 - GitHub