NAME

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 --version

DESCRIPTION

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 provided, 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 Aggregate 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

--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-insensitive, 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

--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 prefix, and a name may only be used one time. The list of available COUNTER fields are

--note-strip

Do not copy the notes (annotations) from the input file(s) to the output 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 annotation. 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 multiple 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 history 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 standard output as long as the --output-path switch is specified to redirect rwaggbag's output to a different location.

--output-path=PATH

Write the binary Aggregate Bag output to PATH, where PATH is a filename, 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 output 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 compiled 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 ignored, regardless of the value passed to this switch or in the SILK_IPV6_POLICY variable. The supported values for POLICY are:

--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 environment variable is used if the value names an available compression method. When no compression method is specified, output to the standard 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.

--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 configuration 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.

--version

Print the version number and information about how SiLK was configured, then exit the application.

EXAMPLES

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, destination 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 relative 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-config-file when that switch is not provided.

SILK_DATA_ROOTDIR

This environment variable specifies the root directory of data repository. As described in the "FILES" section, rwaggbag may use this environment 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

SEE ALSO