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Full Discussion: Strip time from CSV File?
Top Forums Shell Programming and Scripting Strip time from CSV File? Post 302341322 by Franklin52 on Wednesday 5th of August 2009 01:48:47 PM
Old 08-05-2009
Quote:
Originally Posted by figaro
@Franklin52: how does the regex in the sed command skip dashes in the name?
sed has a greedy pattern match, so it should match the last dash.

Quote:
Originally Posted by figaro
and what does the \1" do? Thanks in advance
With sed you can save substrings with \(.*\) and recall them back with \1, \2, \3 etc. with:

Code:
/\(.*\)-.*/

we saved a substring \(.*\) before the last dash, and with:

Code:
\1"/

we print a double quote " after the substring \1.

Hope this helps.
 

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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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