Question

challenge question #4 what is the command that displays the version of the os running?

Explanation:

In Linux - based operating systems, the uname -r command can display the kernel version (a key part of the OS version info), and commands like cat /etc/os - release (for many Linux distros) or on Windows, ver (in the command prompt) can display OS version details. A common and widely - used command to get OS version information, especially for the kernel version in Unix - like systems, is uname -r (or more comprehensively, uname -a which gives more system info including OS - related details). For Windows, the ver command in the Command Prompt shows the Windows OS version.

Answer:

For Linux (Unix - like) systems, common commands are uname -a (shows detailed system/OS - related info including kernel version) or cat /etc/os - release (shows Linux distribution - specific OS version info). For Windows, the command is ver (in Command Prompt). A widely - recognized command for OS version (kernel in Unix - like) is uname -r (shows kernel version) or uname -a.