uptime
uptime is a Linux command in the System Info category, rated intermediate difficulty. Shows how long the system has been running. The syntax is uptime [options]. It returns system uptime and load averages. A practical example: uptime # Output: 10:30:00 up 30 days, 2:15, 3 users, load avg: 0.15, 0.10, 0.05 A close relative is uname, which displays system information (kernel name, hostname, architecture). 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. 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: uname, df, du, free, 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.