The command that replaces netstat in Linux systems is the "ss" command, which stands for socket statistics. It is a faster and more modern tool that provides similar and often more detailed information about network connections, sockets, and protocols. The "ss" command is considered the successor to netstat and is part of the iproute2 package. It offers better filtering options and a more efficient way to troubleshoot network issues compared to the older netstat command. For example, commands like netstat -t to show TCP sockets can be replaced with ss -t. The "ss" command can also display TCP, UDP, RAW, unix domain sockets, and more, making it a comprehensive replacement for netstat. In addition, some functionality of netstat related to routing has been replaced by commands like ip route from the iproute2 suite. In summary, the name of the command replacing netstat in Linux is: ss (socket statistics) command.