NESH — The New EFI Shell

NESH is a compact, standalone UEFI shell executable that replaces the standard UEFI shell with a rewritten command set and an integrated BASIC scripting language. It supports over 80 commands and 50 scripting functions, enabling system administrators and enthusiasts to manage firmware boot entries, execute scripts, and perform hardware tests before an OS boots. It is Secure Boot aware and designed for low-level pre-OS tasks with no installation required.