This is the command flow-cat that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
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 compression), 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 commonly 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 compressed.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
Use flow-cat online using onworks.net services
