Increment value (starttime) Post: 302251396

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Top Forums Shell Programming and Scripting Increment value (starttime) Post 302251396 by Amit.Sagpariya on Monday 27th of October 2008 03:53:36 AM

10-27-2008

Registered User

Increment value (starttime)

Hi All,

I have created a script...

Code:

#!/bin/sh
datafile=ABC2008101601.OUT
indfile=ABCIND20081016.1.OUT
waittime=600
starttime=0
while [ $starttime -le $waittime ]
do
 if [ -f $indfile ]
 then
  echo "Indicator file has arrived."
  break
 else
  sleep 10;
  ((starttime=$starttime+10))
  
  echo $starttime
  echo $waittime
  
  if [ $starttime -eq $waittime ]
  then
   echo "Waittime excceded"
   Get_feed_date=`sqlplus -s amit/amit@amit  <<END 
   set feedback off;
   set heading off;
   select to_char(feed_next_dt, 'YYYYMMDD') from FEED where  source_desc='ABC';
   exit;
   END`
   echo $Get_feed_date
   exit 0
  fi
 fi
done

by givinbg this... i want to increment srattime by 10 each time.... but it is not incrementing.

Code:

sleep 10;
((starttime=starttime+10))

if i put echo $starttime... it shows me 0 for each iteration... but if i execute it seperately on command mode... it is giving me desired result.. can some one tell me what is wrong with this expression

Last edited by otheus; 10-27-2008 at 06:52 AM.. Reason: added [code] tags

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LEARN ABOUT DEBIAN

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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