TShark

TShark is the powerful, open-source terminal-based network packet analysis and packet capture utility developed as the command-line interface counterpart to Wireshark. Designed for network engineers, cybersecurity analysts, and system administrators operating in headless server environments, remote cloud instances, and automated shell scripts, TShark provides the full packet-dissecting capabilities of Wireshark without requiring a graphical desktop environment. TShark leverages the libpcap and WinPcap/Npcap packet capture libraries to capture live network traffic directly from physical or virtual network interfaces or read pre-recorded capture files (PCAP/PCAPNG). The utility supports hundreds of network protocol dissectors, allowing analysts to parse complex network handshakes, decode VoIP streams, analyze TLS handshakes, and inspect application payloads with remarkable precision. Using powerful display and capture filters identical to Wireshark's syntax, users can extract specific packet fields, generate detailed protocol summary statistics, and output forensic data directly into structured text, CSV, XML, or JSON formats for automated processing by SIEM tools, IDS engines, and Python data pipelines. TShark is an essential, high-efficiency command-line utility for automated network forensics, high-speed traffic troubleshooting, and proactive network security monitoring.