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Full Discussion: Sort data in text file in particular format
Top Forums Shell Programming and Scripting Sort data in text file in particular format Post 303002295 by RudiC on Monday 21st of August 2017 04:44:32 PM
Old 08-21-2017
Just guessing what might be the sort criteria, this gets you quite near your desired output:
Code:
awk '
!T[$0]++ && !/,/        {FN = $0
                         if (CMD) close (CMD)
                         CMD = "sort -t, -k1,1r -k2,2 - > " FN
                        }
$0 != FN                {print | CMD}
' file ; for x in 20*; do echo $x; cat $x; done
20170308
PM,I,123
PM,U,123
DA,I,113
DA,U,22
20170309
PM,I,23
PM,U,233
DA,I,11
DA,U,123

This User Gave Thanks to RudiC For This Post:
RavinderSingh13
 

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LEARN ABOUT CENTOS

trace-cmd-start

TRACE-CMD-START(1)														TRACE-CMD-START(1)

NAME

       trace-cmd-start - start the Ftrace Linux kernel tracer without recording

SYNOPSIS

       trace-cmd start [OPTIONS]

DESCRIPTION

       The trace-cmd(1) start enables all the Ftrace tracing the same way trace-cmd-record(1) does. The difference is that it does not run threads
       to create a trace.dat file. This is useful just to enable Ftrace and you are only interested in the trace after some event has occurred and
       the trace is stopped. Then the trace can be read straight from the Ftrace pseudo file system or can be extracted with trace-cmd-extract(1).

OPTIONS

       The options are the same as trace-cmd-record(1), except that it does not take options specific to recording (-s, -o, -F, -N, and -t).

SEE ALSO

       trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1),
       trace-cmd-list(1), trace-cmd-listen(1)

AUTHOR

       Written by Steven Rostedt, <rostedt@goodmis.org[1]>

RESOURCES

       git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git

COPYING

       Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL).

NOTES

	1. rostedt@goodmis.org
	   mailto:rostedt@goodmis.org

								    06/11/2014							TRACE-CMD-START(1)
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