esptool(1) on Linux
The text f4dd8e97edf6, as Debian 11 (Bullseye) shipped it.
ESP8266 and ESP32 ROM Bootloader Utility
Flags it lists
-
--after -
--baud -
--before -
--chip -
--help -
--no-stub -
--override-vddsdio -
--port -
--trace -
-a -
-b -
-c -
-h -
-p -
-t