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FLOW-CAT(1)							   FLOW-CAT(1)

NAME
       flow-cat - Concatenate flow files

SYNOPSIS
       flow-cat	 [  -aghmp  ]	[  -b  big|little  ]   [  -C  comment  ]  [ -d
       debug_level ]  [ -o filename ]  [ -t start_time ]  [ -T start_time ]  [
       -z z_level ]  [ file|directory... ]

DESCRIPTION
       The flow-cat utility processes files and/or directories of files in the
       flow-tools format. The resulting concatenated data set  is  written  to
       the  standard  output or file specified by -o. If file is a single dash
       (`-') or absent, flow-cat will read from the standard input.

OPTIONS
       -a     Do not ignore filenames that begin with tmp.

       -b big|little
	      Byte order of output.

       -C Comment
	      Add a comment.

       -d debug_level
	      Enable debugging.

       -g     Sort file list by capture start time before processing.

       -h     Display help.

       -m     Disable the use of mmap().

       -p     Preload headers. Use to preserve meta information such  as  lost
	      flows.

       -o file
	      Write to file instead of the standard out.

       -t start_time
	      Select flow files up to start_time. If used with -T select files
	      between start_time and end_time.

       -T end_time
	      Select flow files after end_time. If used with -t	 select	 files
	      between start_time and end_time.

       -z z_level
	      Configure	 compression level to  z_level. 0 is disabled (no com‐
	      pression), 9 is highest compression.

       file|directory...
	      Process the files and/or directory.

TIME/DATE PARSING
       start_time and end_time parsing is implemented with getdate.y,  a  com‐
       monly  used  function  to  process  free-form time date specifications.
       Example usage borrowed from cvs: 1 month ago 2 hours ago 400000 seconds
       ago  last  year	last Monday yesterday a fortnight ago 3/31/92 10:00:07
       PST January 23, 1987 10:05pm 22:00 GMT

EXAMPLES
       Concatenate all flow files begining with ft-v05.2001-05.01,  use	 flow-
       print to display the results.

       flow-cat ft-v05.2001-05-01.* | flow-print

       Concatenate  flow  files in /flows/krc4, store store the output in com‐
       pressed.flows at compression level 9 (best). The headers are  preloaded
       so  various  metadata  such as the flow count is correct in the result.
       Filenames begining with tmp which are typically in-progress flow	 files
       from flow-capture are not processed.

       flow-cat -p -z9 /flows/krc4 > compressed.flows

BUGS
       None known.

AUTHOR
       Mark Fullmer <maf@splintered.net>

SEE ALSO
       flow-tools(1)

				26 Август 2010			   FLOW-CAT(1)

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