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Top Forums Shell Programming and Scripting search and replace in csv file Post 302602275 by dondilip on Monday 27th of February 2012 02:26:38 AM
Old 02-27-2012
Quote:
Originally Posted by itkamaraj
Code:
 
,.  --> find first comma, then followed by any one character 
,1 --> replace with comma 1 (,1)
 
we are not using g (global) here, so it replaces the first occurance

,. means first comma followed by only one character. If it has to four characters then ,.... right?


Here is another file where I want to change the second column to 1010

9788691010,5004,20120120002804,
9705645060,5004,20120120004753,
9014961516,5004,20120120004809,
 

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RTPFEED(1)							      Debian								RTPFEED(1)

NAME
rtpfeed - Feed a DVB-S card with an RTP unicast/multicast/broacast stream SYNOPSIS
rtpfeed [ --group group ] [ --port port R] [ --vpid vpid ] [ --apid apid ] rtpfeed --help rtpfeed --version DESCRIPTION
rtpfeed takes a unicast, multicast or broadcast RTP stream from a network (typically generated by dvbstream running on a server) and feeds it to a DVB-S card for decoding and display. As an RTP transport stream from dvbstream can contain multiple (up to eight) video streams and audio streams, the streams to display may be explicitly named on the command line. OPTIONS
-g, --group addr The IP address of the RTP stream. By default, this is 224.0.1.2. -p, --port portnum The IP port of the RTP stream. By default, this is 5004. -v, --vpid vpid The Video PID of the video stream to display. If none is specified, all present are fed to the DVB card. -v, --apid apid The Audio PID of the audio stream to display. If none is specified, all present are fed to the DVB card. --help display this help and exit --version output version information and exit SEE ALSO
dvbstream(1), dumprtp(1), and ts2es(1) HISTORY
Parts of this program were taken from dumprtp.c by David Podeur. AUTHORS
rtpfeed was writteb by Guenter Wildmann, <g.wildmann@it-lab.at>, with parts taken from dumprtp.c by David Podeur. This man page was written by Alastair McKinstry, <mckinstry@computer.org>. Linux 28 July 2002 RTPFEED(1)
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