exec-queue

A tiny utility that limits concurrent child_process.exec calls to prevent EMFILE errors. Version 0.0.2, no active maintenance since 2014. It wraps Node.js child_process.exec with a concurrency queue (default limit 10). Unlike full-featured process managers or promise-based exec wrappers, it provides a simple drop-in replacement with zero dependencies. Useful for legacy scripts or simple batch processing where too many exec calls would exceed OS file descriptor limits.