uname
uname is a Linux command in the System Info category, rated intermediate difficulty. Displays system information (kernel name, hostname, architecture). The syntax is uname [options]. It returns system information string. A practical example: uname -a # All system info uname -r # Kernel release uname -m # Machine architecture (x86_64, aarch64) A close relative is df, which reports disk space usage for mounted filesystems. A close relative is du, which estimates file and directory space usage. A close relative is free, which displays memory usage (RAM + swap). More about this category: Linux system info commands — uname, df, du, free, uptime, lscpu, and more. View system information and hardware details. Related System Info commands: df, du, free, uptime, lscpu, lsusb, lspci, hostname. This page is part of the free Linux Reference documentation covering 304+ commands, each with syntax, options, practical examples, and a difficulty rating.