C Shell for Windows

Tropibyte, Inc. · Tropibyte.cshw

A csh-style shell for Windows with concurrent pipelines, exact-rational bc/dc, native Win32, real concurrency, and built-in AI. One ~14 MB binary, no runtime.

cshw is a native Windows command shell with csh/tcsh-flavored syntax. Familiar Unix shell ergonomics meet first-class Win32 access -- no WSL, no Cygwin, no compatibility layer. 110+ builtin commands cover file ops, text processing (grep with PCRE2, sed, awk, sort with -t/-k, head/tail with -f), real concurrency primitives (coroutines, mutex, semaphore, barrier, channel), Win32 calls (rundllproc, winapi, dllimport), and built-in AI (OpenAI, Anthropic, Azure, Ollama, LM Studio). Runs your existing .bat, .cmd, and .ps1 scripts unchanged. The bc/dc commands offer arbitrary-precision arithmetic with an opt-in exact-rational tier (bc -x) including complex numbers and small exact matrices. As of 1.0.7.0, pipelines run on parallel threads with streaming early-termination; set pipemode = sequential restores the previous semantics. Ships with a 21-chapter user guide.