LinuxGun is a collection of Bash shell scripts for Linux security incident response and system hardening. The core scripts (`linuxGun.sh`, `linuxGunPro.sh`, `linuxcheck.sh`) perform comprehensive checks across system information, user accounts, network connections, processes, files, logs, backdoors, tunnels, webshells, malware, memory, hacker tools, kernel modules, Kubernetes, and baseline security configurations. The toolset is designed for emergency triage by system administrators and security analysts, with color-coded output and modular function organization. It includes auxiliary tools for IP blocking (`blockIP.sh`), network interface monitoring (`monitorInter.sh`), process-to-IP connection mapping (`monitorPs2Ip.sh`), and a file upload server (`uploadServer.py`) for transmitting results. The repository also contains AI skill definitions (in `AI-skills/old/`) that describe an automated incident response workflow via SSH, though these appear to be experimental or deprecated. The codebase is functional but shows signs of rapid iteration, hardcoded assumptions (CentOS 7, specific command availability), incomplete modules, and mixed-language comments (Chinese/English). It is not a polished library but a practical, field-tested toolkit for Linux forensics.