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Full Discussion: Awk - Working with fixed length files
Top Forums Shell Programming and Scripting Awk - Working with fixed length files Post 302197272 by ripat on Tuesday 20th of May 2008 04:00:53 PM
Old 05-20-2008
If you have a recent version of gawk give the following a try:
Code:
BEGIN  {
        FIELDWIDTHS = "29 11 4 500"
        timestamp = strftime("%Y%m%d%j", systime())
}

$1 ~ /^1.+/ {
        seq++
        printf "%s%s%05d%s\n", $1, timestamp, seq, $4
}
$1 !~ /^1.+/ {print}

Of course, the value of FIELDWIDTH needs to be ajusted to your actual record length. But that's the idea.
 

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LEARN ABOUT PHP

gmstrftime

GMSTRFTIME(3)								 1							     GMSTRFTIME(3)

gmstrftime - Format a GMT/UTC time/date according to locale settings

SYNOPSIS

       string gmstrftime (string  $format, [int  $timestamp = time()])

DESCRIPTION

	Behaves the same as strftime(3) except that the time returned is Greenwich Mean Time (GMT). For example, when run in Eastern Standard Time
       (GMT -0500), the first line below prints "Dec 31 1998 20:00:00", while the second prints "Jan 01 1999 01:00:00".

PARAMETERS

	      o $format
		- See description in strftime(3).

	      o $timestamp
		- The optional $timestamp parameter is an integer Unix timestamp that defaults to the current local time if a  $timestamp  is  not
		given. In other words, it defaults to the value of time(3).

RETURN VALUES

	Returns  a  string  formatted according to the given format string using the given $timestamp or the current local time if no timestamp is
       given. Month and weekday names and other language dependent strings respect the current locale set with setlocale(3).

EXAMPLES

       Example #1

	      gmstrftime(3) example

	      <?php
	      setlocale(LC_TIME, 'en_US');
	      echo strftime("%b %d %Y %H:%M:%S", mktime(20, 0, 0, 12, 31, 98)) . "
";
	      echo gmstrftime("%b %d %Y %H:%M:%S", mktime(20, 0, 0, 12, 31, 98)) . "
";
	      ?>

SEE ALSO

       strftime(3).

PHP Documentation Group 													     GMSTRFTIME(3)
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