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Full Discussion: Keeping Null's as it is and separating them by Comma
Top Forums Shell Programming and Scripting Keeping Null's as it is and separating them by Comma Post 302522954 by arunvasu2 on Tuesday 17th of May 2011 09:48:30 AM
Old 05-17-2011
Keeping Null's as it is and separating them by Comma
Hi,

I am having source (Oracle) as given below.
Code:
SourceOBJECT_NAMESUBOBJECT_NAMEOBJECT_IDDATA_OBJECT_IDOBJECT_TYPECREATEDLAST_DDL_TIMESTAMPSTATUSTGSTEST 336559336559TABLE4/15/2009 10:374/15/2009 10:372009-04-15:10:37:57VALIDNNNUNIX 336559336559TABLE4/15/2009 10:374/15/2009 10:372009-04-15:10:37:57VALIDNNNWINDOWS 336559336559TABLE4/15/2009 10:374/15/2009 10:372009-04-15:10:37:57VALIDNNNINFORM 336559336559TABLE4/15/2009 10:374/15/2009 10:372009-04-15:10:37:57VALIDNNN

While i am using the below functions, as the 2nd column SUBOBJECT_NAME is having NULL values, the 3rd column values are moving into 2nd column and so on.

Commands:

Code:
perl -pne 's/\s+([^\s+])/,\1/g' out.txt
awk '$1=$1' OFS=\, file
awk -F, 'NF==6{$0=gensub ("([0-9]+, [[:alpha:]]+),","\\1",1);$0=gensub (", ([[:alpha:]]+, [0-9]+$)"," \\1",1)}1' file

Target data:
Code:
OBJECT_NAME,SUBOBJECT_NAME,OBJECT_ID,DATA_OBJECT_ID,OBJECT_TYPE,CREATED,LAST_DDL_,TIMESTAMP,STATUS,T,G,S
TEST,336559,336559,TABLE,15-Apr-09,15-Apr-09,2009-04-15:10:37:57,VALID,N,N,N,
UNIX,336559,336559,TABLE,15-Apr-09,15-Apr-09,2009-04-15:10:37:57,VALID,N,N,N,
EBILITE,336559,336559,TABLE,15-Apr-09,15-Apr-09,2009-04-15:10:37:57,VALID,N,N,N,
EBILITE,MIGRATION,336559,336559,TABLE,15-Apr-09,15-Apr-09,2009-04-15:10:37:57,VALID,N,N,N

My Requirement: I want the null values to be present in the file and should be separated by comma.

Thanks in advance for your replies.
 

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LEARN ABOUT LINUX

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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