uname

The "uname" command line tool is used in Unix-like operating systems to display system information. When executed without any options, it simply prints the kernel name, which represents the core of the operating system. The command can display various system information by using different options. For example, the "-s" option displays the system name, such as "Linux" or "SunOS."

The "-n" option can be used to retrieve and display the network node hostname of the system. With the "-r" option, the command outputs the kernel release version, providing insights into the specific version of the operating system.

By utilizing the "-v" option, the tool prints additional information about the kernel, such as its build date and version details. The "-m" option displays the machine hardware name, revealing the type of hardware architecture the OS is running on.

The "-p" option shows the processor type information, while the "-i" option provides the system's hardware platform. The "-o" option displays the operating system identifier, which can be helpful in identifying the specific Unix-like OS in use.

Overall, the "uname" command serves as a helpful tool to retrieve system information in a concise and organized manner, facilitating system administration and troubleshooting tasks.