ss
ss is a Linux command in the Network category, rated intermediate difficulty. Socket statistics. Modern replacement for netstat. The syntax is ss [options]. It returns socket/port information. A practical example: ss -tuln # All listening TCP/UDP ports ss -tup # TCP connections with process info ss -s # Summary statistics ss -l # All listening sockets A close relative is ping, which tests network connectivity to a host by sending ICMP echo requests. A close relative is curl, which transfers data to/from a server using various protocols (HTTP, FTP, etc.). A close relative is wget, which downloads files from the internet. Supports recursive downloads. More about this category: Linux networking commands — ping, curl, wget, netstat, ss, ifconfig, and more. Configure and troubleshoot network connections. Related Network commands: ping, curl, wget, ifconfig, ip, netstat, nslookup, dig. This page is part of the free Linux Reference documentation covering 304+ commands, each with syntax, options, practical examples, and a difficulty rating.