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Full Discussion: Remove a block of Text at regular intervals
Top Forums Shell Programming and Scripting Remove a block of Text at regular intervals Post 302468380 by marcozd on Tuesday 2nd of November 2010 02:14:36 PM
Old 11-02-2010
MySQL Clarification and thanks
OK.

Sorry - I was unclear in my intial post.

I meant to remove 2,4,6,8.... and then output this as only file. This essentially cuts the total number of frames by half.

Another option would be to remove frames 3,6,9,12... and then output this as a different file. This essentially cuts the total number of frames by a third.

By the way, I tried the new code you suggested:

Code:
awk -F"\n" -vRS="Frame" -vORS="Frame" 'BEGIN{printf "%s",RS};((NR-1)%2!=0)' infile

and it works perfectly!

Is there a way to modify it to take out every third frame only i.e. frames 3,6,9,12...?
 

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LEARN ABOUT CENTOS

ng_gif_demux

NG_GIF_DEMUX(4) 					   BSD Kernel Interfaces Manual 					   NG_GIF_DEMUX(4)

NAME

     ng_gif_demux -- demultiplexer for packets from ng_gif(4) nodes

SYNOPSIS

     #include <netgraph/ng_gif_demux.h>

DESCRIPTION

     The ng_gif_demux netgraph node type demultiplexes the output from ng_gif(4) nodes in the netgraph(4) networking subsystem.

     The gif hook is meant to be connected to the lower or orphans hook of an ng_gif(4) node.  The inet, inet6, atalk, ipx, atm, natm, and ns
     hooks output frames of the given type when they are received on the gif hook.  When a frame is received on one of these hooks, it is encapsu-
     lated and sent out the gif hook.

HOOKS

     This node type supports the following hooks:

     gif    Connection to the lower or orphans hook of an ng_gif(4) node.

     inet   Hook for input and output of IP frames.

     inet6  Hook for input and output of IPv6 frames.

     atalk  Hook for input and output of AppleTalk frames.

     ipx    Hook for input and output of IPX frames.

     atm    Hook for input and output of ATM frames.

     natm   Hook for input and output of NATM frames.

     ns     Hook for input and output of NS frames.

CONTROL MESSAGES

     This node type supports only the generic control messages.

SEE ALSO

     gif(4), netgraph(4), netintro(4), ng_gif(4), ifconfig(8), ngctl(8), nghook(8)

AUTHORS

     Brooks Davis <brooks@FreeBSD.org>

BSD
								September 18, 2001							       BSD
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