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Full Discussion: problem with counter
Top Forums Shell Programming and Scripting problem with counter Post 302645823 by sagar_1986 on Thursday 24th of May 2012 07:12:08 AM
Old 05-24-2012
dear jim mcnamara

i hv tried urs suggestion but their is some error
log is like this


Code:
> set -x
> awk '{print substr($0, length($0)-3)} ' new1.txt | sort -nu > new2.txt
>  start=$(head -1 new2.txt)
> end=$( tail -1 new2.txt)
> while [ $start -le $end ]
>  do
> echo $start
>  grep -q $start || echo $start
> start=$((  $start + 1 ))
> done > badfile
> printf "missing patterns are "
>  tr -s '\n'  '.'  < badfile
> set +x
>  }
+ sort -nu
+ awk {print substr($0, length($0)-3)}  new1.txt
+ 1> new2.txt
+ + head -1 new2.txt
start=7566
+ + tail -1 new2.txt
end=8128
+ 1> badfile
+ [ 7566 -le 8128 ]
+ echo 7566
+ grep -q 7566


the script just hanged ....



the part of new2.txt is as below

Code:
7872
7873
7874
7875
7876
7877
7878
7879
7880
7881
7882
7883
7884
7885
7886
7887
7888
7889
7890
7891
7892
7893
7894
7895
7896
7897
7898
7899
7900
7901
7902
7903
7904
7905
7906
7907
7908
7909
7910
7911
7912
7913
7914
7915
7916
7917
7918
7919

---------- Post updated at 06:12 AM ---------- Previous update was at 06:07 AM ----------

Quote:
Originally Posted by Corona688
Code:
$ awk -F"." '
# First line, just take the pattern and skip to the next
(!F) { F=$NF; next }
# If the sequence doesn't end in the next number, keep adding until it does.
++F != $NF { D=$NF; while(F < D) { $NF=F++;  print $0 " missing"; } }' OFS="." data
1240.1242.1323 missing
1240.1242.1324 missing
1240.1242.1384 missing
1240.1242.1385 missing
1240.1242.1445 missing
1240.1242.1446 missing
1240.1242.1574 missing
1240.1242.1575 missing
1240.1242.1737 missing
1240.1242.1738 missing
1240.1242.1917 missing
1240.1242.1918 missing
1240.1242.1919 missing
1240.1242.2115 missing
1240.1242.2243 missing

$


thank you very much for the reply,bt i am very new in UNIX world.I didn't get ant thing.where is the input file to be given
 

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LEARN ABOUT V7

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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