TShark (Wireshark) 3.4.0 (v3.4.0-0-g9733f173ea5e) Dump and analyze network traffic. See https://www.wireshark.org for more information.
Usage: tshark [options] ...
Capture interface: -i <interface>, --interface <interface> name or idx of interface (def: first non-loopback) -f <capture filter> packet filter in libpcap filter syntax -s <snaplen>, --snapshot-length <snaplen> packet snapshot length (def: appropriate maximum) -p, --no-promiscuous-mode don't capture in promiscuous mode -I, --monitor-mode capture in monitor mode, if available -B <buffer size>, --buffer-size <buffer size> size of kernel buffer (def: 2MB) -y <link type>, --linktype <link type> link layer type (def: first appropriate) --time-stamp-type <type> timestamp method for interface -D, --list-interfaces print list of interfaces and exit -L, --list-data-link-types print list of link-layer types of iface and exit --list-time-stamp-types print list of timestamp types for iface and exit
Capture stop conditions: -c <packet count> stop after n packets (def: infinite) -a <autostop cond.> ..., --autostop <autostop cond.> ... duration:NUM - stop after NUM seconds filesize:NUM - stop this file after NUM KB files:NUM - stop after NUM files packets:NUM - stop after NUM packets Capture output: -b <ringbuffer opt.> ..., --ring-buffer <ringbuffer opt.> duration:NUM - switch to next file after NUM secs filesize:NUM - switch to next file after NUM KB files:NUM - ringbuffer: replace after NUM files packets:NUM - switch to next file after NUM packets interval:NUM - switch to next file when the time is an exact multiple of NUM secs RPCAP options: -A <user>:<password> use RPCAP password authentication Input file: -r <infile>, --read-file <infile> set the filename to read from (or '-' for stdin)
Processing: -2 perform a two-pass analysis -M <packet count> perform session auto reset -R <read filter>, --read-filter <read filter> packet Read filter in Wireshark display filter syntax (requires -2) -Y <display filter>, --display-filter <display filter> packet displaY filter in Wireshark display filter syntax -n disable all name resolutions (def: all enabled) -N <name resolve flags> enable specific name resolution(s): "mnNtdv" -d <layer_type>==<selector>,<decode_as_protocol> ... "Decode As", see the man page for details Example: tcp.port==8888,http -H <hosts file> read a list of entries from a hosts file, which will then be written to a capture file. (Implies -W n) --enable-protocol <proto_name> enable dissection of proto_name --disable-protocol <proto_name> disable dissection of proto_name --enable-heuristic <short_name> enable dissection of heuristic protocol --disable-heuristic <short_name> disable dissection of heuristic protocol Output: -w <outfile|-> write packets to a pcapng-format file named "outfile" (or '-' for stdout) --capture-comment <comment> set the capture file comment, if supported -C <config profile> start with specified configuration profile -F <output file type> set the output file type, default is pcapng an empty "-F" option will list the file types -V add output of packet tree (Packet Details) -O <protocols> Only show packet details of these protocols, comma separated -P, --print print packet summary even when writing to a file -S <separator> the line separator to print between packets -x add output of hex and ASCII dump (Packet Bytes) -T pdml|ps|psml|json|jsonraw|ek|tabs|text|fields|? format of text output (def: text) -j <protocolfilter> protocols layers filter if -T ek|pdml|json selected (e.g. "ip ip.flags text", filter does not expand child nodes, unless child is specified also in the filter) -J <protocolfilter> top level protocol filter if -T ek|pdml|json selected (e.g. "http tcp", filter which expands all child nodes) -e <field> field to print if -Tfields selected (e.g. tcp.port, _ws.col.Info) this option can be repeated to print multiple fields -E<fieldsoption>=<value> set options for output when -Tfields selected: bom=y|n print a UTF-8 BOM header=y|n switch headers on and off separator=/t|/s|<char> select tab, space, printable character as separator occurrence=f|l|a print first, last or all occurrences of each field aggregator=,|/s|<char> select comma, space, printable character as aggregator quote=d|s|n select double, single, no quotes for values -t a|ad|adoy|d|dd|e|r|u|ud|udoy output format of time stamps (def: r: rel. to first) -u s|hms output format of seconds (def: s: seconds) -l flush standard output after each packet -q be more quiet on stdout (e.g. when using statistics) -Q only log true errors to stderr (quieter than -q) -g enable group read access on the output file(s) -W n Save extra information in the file, if supported. n = write network address resolution information -X <key>:<value> eXtension options, see the man page for details -U tap_name PDUs export mode, see the man page for details -z <statistics> various statistics, see the man page for details --export-objects <protocol>,<destdir> save exported objects for a protocol to a directory named "destdir" --color color output text similarly to the Wireshark GUI, requires a terminal with 24-bit color support Also supplies color attributes to pdml and psml formats (Note that attributes are nonstandard) --no-duplicate-keys If -T json is specified, merge duplicate keys in an object into a single key with as value a json array containing all values --elastic-mapping-filter <protocols> If -G elastic-mapping is specified, put only the specified protocols within the mapping file
Miscellaneous: -h, --help display this help and exit -v, --version display version info and exit -o <name>:<value> ... override preference setting -K <keytab> keytab file to use for kerberos decryption -G [report] dump one of several available reports and exit default report="fields" use "-G help" for more help
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