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Full Discussion: Sed/awk command to convert number occurances into date format and club a set of lines
Top Forums Shell Programming and Scripting Sed/awk command to convert number occurances into date format and club a set of lines Post 302957570 by Chinmaya Kabi on Tuesday 13th of October 2015 03:19:24 AM
Old 10-13-2015
Sed/awk command to convert number occurances into date format and club a set of lines
Hi,

I have been stuck in this requirement where my file contains the below format.

Code:
20150812170500846959990854-25383-8.0.0
"ABC Report" hp96880
"4952"
20150812170501846959990854-25383-8.0.0 End of run
20150812060132846959990854-20495-8.0.0
"XYZ Report" vg76452
"1006962188"
20150812060141846959990854-20495-8.0.0
"ZZY Report" fu59172
20150812060147846959990854-20495-8.0.0 End of run

It follows the below pattern.
Line 1: Start Time
Line 2: Report Name and User
Line 3: Identifier
Line 4: End Time
In the following lines, the 2nd block is missing the End Time and the 3rd block is missing the Identifier.

The requirement is to
1. convert all lines starting with "20" into date format i.e. YYYY/MM/DD
2. Merge block from Start Time till End time separated by commas.
3. Ignore blocks that that don't have the end time.
4. Add a blank space in the block which doesn't contain identifier.
5. If possible, separate Report Name and User Name with comma.

The output should basically look like the below.
Code:
2015/08/12:17:05:00,"ABC Report",hp96880,"4952",2015/08/12:17:05:01
2015/08/12:06:01:41,"ZZY Report",fu59172,"",2015/08/12:06:01:47


I used the if loop for addressing the requirements but the script slows down when run for large files and hence I'm looking for a faster solution using sed or awk.
Can anyone please help me out here ?
Last edited by Scrutinizer; 10-13-2015 at 04:23 AM.. Reason: code tags
 

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LEARN ABOUT MINIX

ppmtosixel

ppmtosixel(1)                                                 General Commands Manual                                                ppmtosixel(1)

NAME

       ppmtosixel - convert a portable pixmap into DEC sixel format

SYNOPSIS

       ppmtosixel [-raw] [-margin] [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as input.  Produces sixel commands (SIX) as output.  The output is formatted for color printing, e.g. for a DEC
       LJ250 color inkjet printer.

       If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled.  A printer control header and a color assignment table
       begin the SIX file.  Image data is written in a compressed format by default.  A printer control footer ends the image file.

OPTIONS

       -raw   If  specified,  each  pixel  will  be explicitly described in the image file.  If -raw is not specified, output will default to com-
              pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands.  A raw file is often an order  of  magni-
              tude larger than a compressed file and prints much slower.

       -margin
              If  -margin  is not specified, the image will be start at the left margin (of the window, paper, or whatever).  If -margin is speci-
              fied, a 1.5 inch left margin will offset the image.

PRINTING

       Generally, sixel files must reach the printer unfiltered.  Use the lpr -x option or cat filename > /dev/tty0?.

BUGS

       Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion.  If the original PPM maxval was
       greater  than  100,  rescaling  also reduces the image depth.  While the actual RGB values from the ppm file are more or less retained, the
       color palette of the LJ250 may not match the colors on your screen.  This seems to be a printer limitation.

SEE ALSO

       ppm(5)

AUTHOR

       Copyright (C) 1991 by Rick Vinci.

                                                                   26 April 1991                                                     ppmtosixel(1)
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