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Full Discussion: [awk] grep a part of filename as entry file
Top Forums Shell Programming and Scripting [awk] grep a part of filename as entry file Post 302695445 by elixir_sinari on Monday 3rd of September 2012 03:13:57 AM
Old 09-03-2012
Quote:
Originally Posted by itkamaraj
Code:
 
nawk -F"[_.]" 'BEGIN{fdate=substr(FILENAME,length(FILENAME)-14,11)}NR==4{$0=fdate","$0;print}' Bounce_Mail_Event_Daily_Report*.csv

try with awk, if you dont have nawk.
The BEGIN block will be executed before reading the arguments. So, FILENAME will have null value (on many awk implementations including gawk).
The FS is not required.
Last edited by elixir_sinari; 09-03-2012 at 04:24 AM..
 

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LEARN ABOUT DEBIAN

ifpps

ifpps(8)							netsniff-ng-toolkit							  ifpps(8)

NAME

       ifpps - fetch and format kernel network statistics

SYNOPSIS

       ifpps	 -d|--dev <netdev> [-t|--interval <sec>][-p|--promisc][-c|--term]
	    [-C|--csv][-H|--csv-tablehead][-l|--loop][-v|--version][-h|--help]

DESCRIPTION

       A tiny tool to provide top-like reliable networking statistics.	ifpps reads out the 'real' kernel statistics, so it does not give
       erroneous statistics on high I/O load.

OPTIONS

       ifpps --dev eth0
	   Fetch eth0 interface statistics.

       ifpps --dev eth0 --interval 60 --csv
	   Output eth0 interface statistics every minute in CSV format.

OPTIONS

       -h|--help
	   Print help text and lists all options.

       -v|--version
	   Print version.

       -d|--dev <netdev>
	   Device to fetch statistics for i.e., eth0.

       -p|--promisc
	   Put the device in promiscuous mode

       -t|--interval <time>
	   Refresh time in sec (default 1 sec)

       -c|--term
	   Output to terminal

       -C|--csv
	   Output in CSV format.  E.g. post-processing with Gnuplot et al.

       -H|--csv-tablehead
	   Print CSV table head.

       -l|--loop
	   Loop terminal output.

AUTHOR

       Written by Daniel Borkmann <daniel@netsniff-ng.org>

DOCUMENTATION

       Documentation by Emmanuel Roullit <emmanuel@netsniff-ng.org>

BUGS

       Please report bugs to <bugs@netsniff-ng.org>

								    2012-06-29								  ifpps(8)
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