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Full Discussion: making sed command case insensitive
Top Forums Shell Programming and Scripting making sed command case insensitive Post 302588446 by michaelrozar17 on Monday 9th of January 2012 03:19:02 AM
Old 01-09-2012
Ok.But i dont understand completely, however in general there are couple of ways

1. If your sed supports case insensitive operator I then it would be simple to solve sed '/ReplicatorInfo/,/engine=Innodb/I!d'

2. Change the variable assignment as endpoint="[Ee][Nn][Gg][Ii][Nn][Ee].. etc and try.

3. Convert all the characters either to upper or lower case in pattern space and print the required, but this would require to change the variable assignment firstword and endpoint
Code:
firstword='REPLICATORINFO'
endpoint='ENGINE=INNODB'
sed -n "h;y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/;/$firstword/,/$endpoint/{x;P}" inputfile

4. Perl solution which has case insensitive operator i
Last edited by michaelrozar17; 01-09-2012 at 05:06 AM..
This User Gave Thanks to michaelrozar17 For This Post:
vivek d r
 

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LEARN ABOUT FREEBSD

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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