rwaggbag(1) SiLK Tool Suite rwaggbag(1) NAME rwaggbag - Build a binary Aggregate Bag from SiLK Flow records SYNOPSIS rwaggbag --keys=KEY --counters=COUNTER [--note-strip] [--note-add=TEXT] [--note-file-add=FILE] [--invocation-strip] [--print-filenames] [--copy-input=PATH] [--compression-method=COMP_METHOD] [--ipv6-policy={ignore,asv4,mix,force,only}] [--output-path=PATH] [--site-config-file=FILENAME] {[--xargs] | [--xargs=FILENAME] | [FILE [FILE ...]]} rwaggbag --help rwaggbag --help-fields rwaggbag --version DESCRIPTION rwaggbag reads SiLK Flow records and builds an Aggregate Bag file. To build an Aggregate Bag from textual input, use rwaggbagbuild(1). An Aggregate Bag is a binary file that maps a key to a counter, where the key and the counter are both composed of one or more fields. For example, an Aggregate Bag could contain the sum of the packet count and the sum of the byte count for each unique source IP and source port pair. For each SiLK flow record rwaggbag reads, it extracts the values of the fields listed in the --keys switch, combines those fields into a key, searches for an existing bin that has that key and creates a new bin for that key if none is found, and adds the values for each of the fields listed in the --counters switch to the bin's counter. Both the --keys and --counters switches are required. rwaggbag reads SiLK Flow records from the files named on the command line or from the standard input when no file names are specified and --xargs is not present. To read the standard input in addition to the named files, use "-" or "stdin" as a file name. If an input file name ends in ".gz", the file is uncompressed as it is read. When the --xargs switch is pro- vided, rwaggbag reads the names of the files to process from the named text file or from the standard input if no file name argument is provided to the switch. The input to --xargs must contain one file name per line. If rwaggbag runs out of memory, it will exit immediately. The output Ag- gregate Bag file remains behind with a size of 0 bytes. To print the contents of an Aggregate Bag as text, use rwaggbagcat(1). The rwaggbagbuild(1) tool can create an Aggregate Bag from textual input. rwaggbagtool(1) allows you to manipulate binary Aggregate Bag files. OPTIONS Option names may be abbreviated if the abbreviation is unique or is an ex- act match for an option. A parameter to an option may be specified as --arg=param or --arg param, though the first form is required for options that take optional parameters. --keys=KEY Create a key for binning flow records using the values of the comma-separated field(s) listed in KEY. The field names are case-in- sensitive, a name may be abbreviated to its shortest unique prefix, and a name may only be used one time. The list of available KEY fields are sIPv4 source IP address when IPv4 sIPv6 source IP address when IPv6 dIPv4 destination IP address when IPv4 dIPv6 destination IP address when IPv6 sPort source port for TCP or UDP, or equivalent dPort destination port for TCP or UDP, or equivalent protocol IP protocol packets count of packets recorded for this flow record bytes count of bytes recorded for this flow record flags bit-wise OR of TCP flags over all packets in the flow sTime starting time of the flow, in seconds resolution duration duration of the flow, in seconds resolution eTime ending time of the flow, in seconds resolution sensor numeric ID of the sensor where the flow was collected input router SNMP input interface or vlanId if packing tools were config- ured to capture it (see sensor.conf(5)) output router SNMP output interface or postVlanId nhIPv4 router next hop IP address when IPv4 nhIPv6 router next hop IP address when IPv6 initialFlags TCP flags on first packet in the flow as reported by yaf(1) sessionFlags bit-wise OR of TCP flags over all packets in the flow except the first as reported by yaf attributes flow attributes set by the flow generator application content of the flow as reported in the applabel field of yaf class class of the sensor at the collection point typetype of the sensor at the collection point icmpType ICMP type value for ICMP and ICMPv6 flows, 0 otherwise icmpCode ICMP code value for ICMP and ICMPv6 flows, 0 otherwise scc the country code of the source IP address. Uses the mapping file specified by the SILK_COUNTRY_CODES environment variable or the country_codes.pmap mapping file, as described in "FILES". (See also ccfilter(3).) Since SiLK 3.19.0. dcc the country code of the destination IP address. See "scc". Since SiLK 3.19.0. --counters=COUNTER Add to the bin determined by the fields in --key the values of the comma-separated field(s) listed in COUNTER. The field names are case-insensitive, a name may be abbreviated to its shortest unique pre- fix, and a name may only be used one time. The list of available COUNTER fields are records count of the number of flow records that match the key sum-packets the sum of the packet counts for flow records that match the key sum-bytes the sum of the byte counts for flow records that match the key sum-duration the sum of the durations (in seconds) for flow records that match the key --note-strip Do not copy the notes (annotations) from the input file(s) to the out- put file. When this switch is not specified, notes from the input file(s) are copied to the output. --note-add=TEXT Add the specified TEXT to the header of the output file as an annota- tion. This switch may be repeated to add multiple annotations to a file. To view the annotations, use the rwfileinfo(1) tool. --note-file-add=FILENAME Open FILENAME and add the contents of that file to the header of the output file as an annotation. This switch may be repeated to add mul- tiple annotations. Currently the application makes no effort to ensure that FILENAME contains text; be careful that you do not attempt to add a SiLK data file as an annotation. --invocation-strip Do not record any command line history: do not copy the invocation his- tory from the input files to the output file(s), and do not record the current command line invocation in the output. The invocation may be viewed with rwfileinfo(1). --print-filenames Print to the standard error the names of input files as they are opened. --copy-input=PATH Copy all binary SiLK Flow records read as input to the specified file or named pipe. PATH may be "stdout" or "-" to write flows to the stan- dard output as long as the --output-path switch is specified to redi- rect rwaggbag's output to a different location. --output-path=PATH Write the binary Aggregate Bag output to PATH, where PATH is a file- name, a named pipe, the keyword "stderr" to write the output to the standard error, or the keyword "stdout" or "-" to write the output to the standard output. If PATH names an existing file, rwaggbag exits with an error unless the SILK_CLOBBER environment variable is set, in which case PATH is overwritten. If this switch is not given, the out- put is written to the standard output. Attempting to write the binary output to a terminal causes rwaggbag to exit with an error. --ipv6-policy=POLICY Determine how IPv4 and IPv6 flows are handled when SiLK has been com- piled with IPv6 support. When the switch is not provided, the SILK_IPV6_POLICY environment variable is checked for a policy. If it is also unset or contains an invalid policy, the POLICY is mix. When SiLK has not been compiled with IPv6 support, IPv6 flows are always ig- nored, regardless of the value passed to this switch or in the SILK_IPV6_POLICY variable. The supported values for POLICY are: ignore Ignore any flow record marked as IPv6, regardless of the IP ad- dresses it contains. Only IP addresses contained in IPv4 flow records will be added to the Aggregate Bag. asv4Convert IPv6 flow records that contain addresses in the ::ffff:0:0/96 netblock (that is, IPv4-mapped IPv6 addresses) to IPv4 and ignore all other IPv6 flow records. mix Process the input as a mixture of IPv4 and IPv6 flow records. When creating a bag whose key is an IP address and the input contains IPv6 addresses outside of the ::ffff:0:0/96 netblock, this policy is equivalent to force; otherwise it is equivalent to asv4. force Convert IPv4 flow records to IPv6, mapping the IPv4 addresses into the ::ffff:0:0/96 netblock. onlyProcess only flow records that are marked as IPv6. Only IP ad- dresses contained in IPv6 flow records will be added to the Aggre- gate Bag. --compression-method=COMP_METHOD Specify the compression library to use when writing output files. If this switch is not given, the value in the SILK_COMPRESSION_METHOD en- vironment variable is used if the value names an available compression method. When no compression method is specified, output to the stan- dard output or to named pipes is not compressed, and output to files is compressed using the default chosen when SiLK was compiled. The valid values for COMP_METHOD are determined by which external libraries were found when SiLK was compiled. To see the available compression methods and the default method, use the --help or --version switch. SiLK can support the following COMP_METHOD values when the required libraries are available. noneDo not compress the output using an external library. zlibUse the zlib(3) library for compressing the output, and always com- press the output regardless of the destination. Using zlib pro- duces the smallest output files at the cost of speed. lzo1x Use the lzo1x algorithm from the LZO real time compression library for compression, and always compress the output regardless of the destination. This compression provides good compression with less memory and CPU overhead. snappy Use the snappy library for compression, and always compress the output regardless of the destination. This compression provides good compression with less memory and CPU overhead. Since SiLK 3.13.0. bestUse lzo1x if available, otherwise use snappy if available, other- wise use zlib if available. Only compress the output when writing to a file. --site-config-file=FILENAME Read the SiLK site configuration from the named file FILENAME. When this switch is not provided, rwaggbag searches for the site configura- tion file in the locations specified in the "FILES" section. --xargs --xargs=FILENAME Read the names of the input files from FILENAME or from the standard input if FILENAME is not provided. The input is expected to have one filename per line. rwaggbag opens each named file in turn and reads records from it as if the filenames had been listed on the command line. --help Print the available options and exit. --help-fields Print the names and descriptions of the keys and counters that may be used in the --keys and --counters switches and exit. Since SiLK 3.22.0. --version Print the version number and information about how SiLK was configured, then exit the application. EXAMPLES In the following examples, the dollar sign ("$") represents the shell prompt. The text after the dollar sign represents the command line. Lines have been wrapped for improved readability, and the back slash ("\") is used to indicate a wrapped line. To create an Aggregate Bag that sums the packet count for destination IPs addresses in the SiLK Flow file data.rw: $ rwaggbag --key=dipv6 --counter=sum-packets data.rw \ | rwaggbagcat To sum the number of records, packet count, and byte count for all flow records $ rwaggbag --key=dport --counter=records,sum-packets,sum-bytes \ --output-path=dport.aggbag data.rw To count the number of records seen for each unique source port, destina- tion port, and protocol: $ rwaggbag --key=sport,dport,proto --counter=records data.rw \ | rwaggbagcat ENVIRONMENT SILK_COUNTRY_CODES This environment variable allows the user to specify the country code mapping file that rwaggbag uses when mapping an IP to a country for the "scc" and "dcc" keys. The value may be a complete path or a file rela- tive to the SILK_PATH. See the "FILES" section for standard locations of this file. SILK_IPV6_POLICY This environment variable is used as the value for --ipv6-policy when that switch is not provided. SILK_CLOBBER The SiLK tools normally refuse to overwrite existing files. Setting SILK_CLOBBER to a non-empty value removes this restriction. SILK_COMPRESSION_METHOD This environment variable is used as the value for --compression-method when that switch is not provided. SILK_CONFIG_FILE This environment variable is used as the value for the --site-con- fig-file when that switch is not provided. SILK_DATA_ROOTDIR This environment variable specifies the root directory of data reposi- tory. As described in the "FILES" section, rwaggbag may use this envi- ronment variable when searching for the SiLK site configuration file. SILK_PATH This environment variable gives the root of the install tree. When searching for configuration files, rwaggbag may use this environment variable. See the "FILES" section for details. FILES ${SILK_CONFIG_FILE} ${SILK_DATA_ROOTDIR}/silk.conf /data/silk.conf ${SILK_PATH}/share/silk/silk.conf ${SILK_PATH}/share/silk.conf /usr/local/share/silk/silk.conf /usr/local/share/silk.conf Possible locations for the SiLK site configuration file which are checked when the --site-config-file switch is not provided. $SILK_COUNTRY_CODES $SILK_PATH/share/silk/country_codes.pmap $SILK_PATH/share/country_codes.pmap /usr/local/share/silk/country_codes.pmap /usr/local/share/country_codes.pmap Possible locations for the country code mapping file required by the "scc" and "dcc" keys. NOTES rwaggbag and the other Aggregate Bag tools were introduced in SiLK 3.15.0. SEE ALSO rwaggbagbuild(1), rwaggbagcat(1), rwaggbagtool(1), rwbag(1), rwfileinfo(1), rwfilter(1), rwnetmask(1), rwset(1), rwuniq(1), ccfilter(3), sen- sor.conf(5), silk(7), yaf(1), zlib(3) SiLK 3.22.2 2026-08-27 rwaggbag(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | ENVIRONMENT | FILES | NOTES | SEE ALSO
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