ksh script using expr to calculate percentages Post: 302190743

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

how do I get the value of expr with ksh

Hi, I have written a korn shell script to compute the value of k. formulae : a=10 b=20 c=30 k=(a+b)*c my shell script is : a=10 b=20 c=30 k=`expr (($a + $b ) * $c )` echo $k ### here paranthesis ( ) not accepting by expr function.

2. Shell Programming and Scripting

calculate server uptime in % (99.98), using ksh script

Let me preface by saying, I have looked through many threads that deal with keep the decimal, however I'm not sure that any one resolution meets my needs, ok, ok, they could. So maybe it's just that I am not understanding the resolution - therefore I am posting a new thread. myknowledgebase=at...

3. Shell Programming and Scripting

expr error in ksh

Hi ALL, i am so much confused y the following script is not working in the korn shel which works in bash shell. please solve the error that i am facing. i want to extract the format of the size from a variable i.e. GB or KB or MB or B or BYTES code: -------- size_dir_pass=1.2gb...

4. Shell Programming and Scripting

expr inside a ksh script Solaris

Hi; If I do something like this. dftotalsize=0;export dftotalsize;df -k | grep \/db001 | awk '{print $4}' | while read theinput \ ; do export $theinput; dftotalsize=`expr $dftotalsize + $theinput`; export dftotalsize; echo $dftotalsize; done ; echo `expr $dftotalsize \/ 1024 \/ 1024 "GB" Is...

5. Shell Programming and Scripting

help with expr command in script

Hi, I am trying to code a unix function to calculate date difference between two date variables. I am stuck at a point where I am trying to convert hours into minutes. Below is the code I am doing. function get_elapsed_time { export PROPS_FILE=temp.properties export...

6. Shell Programming and Scripting

Comparing sizes in percentages of 2 files in bash

Hi guys, I hope you can enlight me with a script I'm doing for Solaris 10. Script goes like this: #!/usr/bin/bash fechahoy=`perl /export/home/info/John/fechamod.pl` fechayer=`perl /export/home/info/John/fecha.pl` echo $fechahoy echo $fechayer DAT1=`ssh ivt@blahblah ls -la...

7. Shell Programming and Scripting

Script to provide percentages?

so i'm have been stifled here inn my attempts at this. i need to calculate an unusual figure. what is the percentage difference between 400 and 3? usually, to get the percentage, you just divide the smaller number by the bigger number. then multiply the answer by 100. in this case...

8. Shell Programming and Scripting

Grouping and calculation of percentages

Hi, I have a table like this, Group type L1 L2 L3 L4 L5 L6 A xx1 0 3 3 2 1 0 A xx2 2 2 2 1 7 2 B yy1 2 4 6 6 3 1 C yy2 7 7 7 0 2 3 C zz2 8 8 2 ...

9. Shell Programming and Scripting

KSH script Not working (calculate days since 1/1/2000 given day 4444)

I am unable to get this KSH script to work. Can someone help. I've been told this should work with KSH93. Which I think I have on Solaris 10. If I do a grep -i version /usr/dt/bin/dtksh I get @(#)Version M-12/28/93d @(#)Version 12/28/93 @(#)Version M-12/28/93 This is correct for...

10. Shell Programming and Scripting

Diffing words - percentages

is there a way to do the following: say i have two words: WelcomeMattTom and WelcomeMTom How can i compare the two words to know how much alike, in percentages they are? like, how similar is WelcomeMTom to WelcomeMattTom? not clear yet? say i introduced a third word,...

LEARN ABOUT SUNOS

mlib_imagestddev

mlib_ImageStdDev(3MLIB) 				    mediaLib Library Functions					   mlib_ImageStdDev(3MLIB)

NAME

       mlib_ImageStdDev - image standard deviation

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_ImageStdDev(mlib_d64 *sdev, const mlib_image *img, const mlib_d64 *mean);

DESCRIPTION

       The mlib_ImageStdDev() function computes the standard deviation for each channel in the source image.

       It uses the following equation:

		     1	   w-1 h-1
       sdev[i] = { ----- * SUM SUM (img[x][y][i] - mean[i])**2 }**0.5
		    w*h    x=0 y=0

       where, in the case of mean == NULL,

		   1	 w-1 h-1
       mean[i] = ----- * SUM SUM img[x][y][i]
		  w*h	 x=0 y=0

PARAMETERS

       The function takes the following arguments:

       sdev	       Pointer	to standard deviation array, whose size is the number of channels in the source image.	sdev[i] contains the stan-
		       dard deviation of channel i.

       img	       Pointer to input image.

       mean	       Pointer to pre-computed mean array for each channel.  (If NULL, it will be computed.)  mean[i] contains the mean of channel
		       i.

RETURN VALUES

       The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mlib_ImageMean(3MLIB), mlib_ImageMean_Fp(3MLIB), mlib_ImageStdDev_Fp(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 					   mlib_ImageStdDev(3MLIB)