SystemRescueCD is a Linux-based toolkit designed for administrating or repairing computer systems and data after a crash. Available as a bootable CD-ROM or USB drive, it offers an extensive range of utilities to manage files, debug systems, and diagnose hardware problems. The toolkit includes tools for disk imaging and partitioning, file recovery, networking operations, and system management, supporting both Linux and Windows computers. Featuring a command-line interface with options for a graphical environment, it is a go-to resource for IT professionals looking to fix system issues efficiently.