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Full Discussion: Extract & Manipulate continous data stream-- tcpdump
Top Forums Shell Programming and Scripting Extract & Manipulate continous data stream-- tcpdump Post 302897511 by delphys on Monday 14th of April 2014 12:57:47 PM
Old 04-14-2014
Thank you very much but I am not getting any output..

Code:
 tcpdump | awk '/^[0-9]*:[0-9]*/ {src=$3} match($0, /IBM-32[^.]*\.[^.]*/) { str=substr($0,RSTART,RLENGTH);\
>  ibm[str]=src FS ibm[str] } END { for (i in ibm)  { print i, ibm[i] } }'
tcpdump: WARNING: Shared: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on Shared, link-type EN10MB (Ethernet), capture size 65535 bytes

 

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LEARN ABOUT NETBSD

sane-ibm

sane-ibm(5)						   SANE Scanner Access Now Easy 					       sane-ibm(5)

NAME

       sane-ibm - SANE backend for IBM and Ricoh SCSI flatbed scanners

DESCRIPTION

       The sane-ibm library implements a SANE (Scanner Access Now Easy) backend that provides access to the IBM 2456 and the Ricoh IS-410, IS-420,
       and IS-430 flatbed scanners. Support for the IS-410 and IS-430 is untested. Please contact the maintainer or the sane-devel mailing list if
       you own such a scanner.

       This  backend  is alpha-quality. It may have bugs and some scanners haven't been tested at all. Be careful and pull the plug if the scanner
       causes unusual noise.

DEVICE NAMES

       This backend expects device names of the form:

	      special

       Where special is either the path-name for the special device that corresponds to a SCSI scanner. The  program  sane-find-scanner  helps	to
       find out the correct device. Under Linux, such a device name could be /dev/sg0 or /dev/sga, for example.  See sane-scsi(5) for details.

CONFIGURATION

       The  contents  of the ibm.conf file is a list of device names that correspond to SCSI scanners.	Empty lines and lines starting with a hash
       mark (#) are ignored.  See sane-scsi(5) on details of what constitutes a valid device name.

FILES

       /etc/sane.d/ibm.conf
	      The backend configuration file (see also description of SANE_CONFIG_DIR below).

       /usr/lib64/sane/libsane-ibm.a
	      The static library implementing this backend.

       /usr/lib64/sane/libsane-ibm.so
	      The shared library implementing this backend (present on systems that support dynamic loading).

ENVIRONMENT

       SANE_CONFIG_DIR
	      This environment variable specifies the list of directories that may contain the configuration file.  Under  UNIX,  the  directories
	      are  separated  by a colon (`:'), under OS/2, they are separated by a semi-colon (`;').  If this variable is not set, the configura-
	      tion file is searched in two default directories: first, the current working directory (".") and then in /etc/sane.d.  If the  value
	      of the environment variable ends with the directory separator character, then the default directories are searched after the explic-
	      itly specified directories.  For example, setting SANE_CONFIG_DIR to "/tmp/config:" would result in directories  "tmp/config",  ".",
	      and "/etc/sane.d" being searched (in this order).

       SANE_DEBUG_IBM
	      If the library was compiled with debug support enabled, this environment variable controls the debug level for this backend.  Higher
	      debug levels increase the verbosity of the output.

SEE ALSO

       sane(7), sane-find-scanner(1), sane-scsi(5),

AUTHOR

       mf <massifr@tiscalinet.it>
       Maintained by Henning Meier-Geinitz <henning@meier-geinitz.de>

								    13 Jul 2008 						       sane-ibm(5)
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