division by zero Post: 302448550

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1. Shell Programming and Scripting

division problem

how can i show the value when i divide a number where the dividend is greater then the divisor. for example... 3 divided by 15 ---> let x=3/15 when i do this in the shell environment it gives me an output of 0. please help me. thanks.

2. Filesystems, Disks and Memory

Cannot adjust division

I have a doubt with an error message, and i want to be sure if this is a normal situation or not. Situation: I was formating and installing a SCSI 36Gb HD with UNIX SCO 5.05, the problem happens when is making the division and filesystem on disk 1, and the message error is "Exit value 139...

3. UNIX for Dummies Questions & Answers

Problem in division

hi I am having two variables namely a=7 & b=8. I have to subtract these two variables. I am using the command c=`expr $a / $b` When I check the value of c, it comes out to be zero. Please help. Regards Rochit

4. Shell Programming and Scripting

division by 0 error

Hi, I am writing a script that among other things will be checking for various files on mount points. One of the conditions is that unless the server has failed over the df command will show root ( / ). If when checking the files the script comes across /, I want it to skip it, otherwise to...

5. Shell Programming and Scripting

how to check for division by zero

i have a script that is doing the following: awk 'BEGIN {FS=","} ; {printf("%.10f",($5 - $2)/(3 * $3))}' data > test now some records in $3 contain zeroes. i don't want to remove those records. is it possible to check for division by zero and then write a "N/A" for that record in the o/p...

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awk: division by zero

I received error "awk: division by zero" while executing the following statement. SunOS 5.10 Generic_142900-15 sun4us sparc FJSV,GPUZC-M echo 8 | awk 'END {printf ("%d\n",NR/$1 + 0.5);}' file1.lst awk: division by zero Can someone provide solution? Thanks Please use code...

7. UNIX for Dummies Questions & Answers

Help in division

hi, The below commands result only the whole number(not giving the decimal values). pandeeswaran@ubuntu:~$ echo 1,2,3,4|sed 's/,/\//g'|bc 0 pandeeswaran@ubuntu:~$ echo 1000,2,3|sed 's/,/\//g'|bc 166 How to make it to return the decimal values? Thanks

8. UNIX for Dummies Questions & Answers

Division of wc output

I have a function that outputs 3 lines for each result and I want to know how many results there are. so for example function | wc -l 24 but I want to see the result 8. so is there a easy way to divide the result?

9. Shell Programming and Scripting

Division of columns from two files

I have two text files T1 and T2 T1 looks as follows Name All Maths Science English Social Anie 48/18 = 2.7 44/17 = 2.6 20/6 = 3.3 24/11 = 2.2 NA Edwin ...

LEARN ABOUT LINUX

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)