Linux Commands Reference - Complete Linux Command Guide
Comprehensive Linux command reference with 150+ commands. Search, filter by category, and view detailed usage examples.
nc
Network utility (Swiss Army knife)
Syntax
nc [OPTION]... HOST PORTCommon Options
-lListen mode-pSpecify local port-vVerbose mode-zZero I/O mode (scan)-wSet timeout-uUse UDP-nNo DNS resolution-eExecute commandCommon Examples
nc -zv host 80Check if port is open
nc -l 1234Listen on port 1234
nc host 1234Connect to port 1234
nc -zv host 20-80Scan port range
nc -u -l 1234UDP listen
echo "GET /" | nc host 80Send HTTP request
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