Inspect a command's effects before modifying your live system
Try is a Linux command-line utility that lets users run a command and inspect its effects before deciding whether to commit those changes to the live system. It works by using Linux namespaces through unshare together with overlay-based filesystem techniques so that commands can execute in an isolated view of the system rather than directly modifying the host environment immediately.
Utility to show live progress, status & stats for running simulations
progrep is a command-line tool (Linux) to show live progress report, status & stats of a running simulation or compute job that executes a given number of iterations. It shows % completed, time remaining, time elapsed, number of threads, MPI_Rank(if any), CPU usage & speed (FPS). The FPS measures may be used in benchmarking, e.g. while optimizing HPC algorithms for performance.