-h, --help
Show summary of options.
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-V, --version
Output version information.
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-n, --numeric
Do not try to resolve service names.
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-r, --resolve
Try to resolve numeric address/ports.
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-a, --all
Display both listening and non-listening (for TCP this means established connections) sockets.
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-l, --listening
Display only listening sockets (these are omitted by default).
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-o, --options
Show timer information.
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-e, --extended
Show detailed socket information
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-m, --memory
Show socket memory usage.
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-p, --processes
Show process using socket.
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-i, --info
Show internal TCP information.
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-s, --summary
Print summary statistics. This option does not parse socket lists obtaining summary from various
sources. It is useful when amount of sockets is so huge that parsing /proc/net/tcp is painful.
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-4, --ipv4
Display only IP version 4 sockets (alias for -f inet).
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-6, --ipv6
Display only IP version 6 sockets (alias for -f inet6).
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-0, --packet
Display PACKET sockets (alias for -f link).
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-t, --tcp
Display TCP sockets.
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-u, --udp
Display UDP sockets.
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-d, --dccp
Display DCCP sockets.
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-w, --raw
Display RAW sockets.
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-x, --unix
Display Unix domain sockets (alias for -f unix).
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-f FAMILY, --family=FAMILY
Display sockets of type FAMILY. Currently the following families are supported: unix, inet,
inet6, link, netlink.
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-A QUERY, --query=QUERY, --socket=QUERY
List of socket tables to dump, separated by commas. The following identifiers are understood: all,
inet, tcp, udp, raw, unix, packet, netlink, unix_dgram, unix_stream, packet_raw, packet_dgram.
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-D FILE, --diag=FILE
Do not display anything, just dump raw information about TCP sockets to FILE after applying
filters. If FILE is - stdout is used.
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-F FILE, --filter=FILE
Read filter information from FILE. Each line of FILE is interpreted like single command line
option. If FILE is - stdin is used.
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