05-22-2009
Simple arithmetic in shell
Hey, I just wanted to know how one can write simple arithmetic like addition, subtraction, multiplication and division in shell-script.
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I have no idea why I can't get this to work, if anybody can help i would appreciate it.
#!/bin/bash
x=`cat counter.txt | wc -l`
y= '$x / 7'
printf "%d People have visited this page" $y
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page
unix com/answers-frequently-asked-questions/13785-yesterdays-date-date-arithmetic.html
Date Arithmetic with the Shell
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www samag com/documents/s=8284/sam0307b/0307b.htm
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I need help on arithmetic
root@server # hour=`date | awk {'print $4'} | cut -d: -f 1`; echo $hour
04
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i am having a varialbe a , which is input to my file
i want to multiply this input with value .43, and assign it to variable b.
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a=$1
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echo b=$b
error : expr: non-integer argument
Please tell me , how to do this.
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LEARN ABOUT HPUX
hppacmpyd
hppac(3X) hppac(3X)
NAME
hppac: HPPACADDD(), HPPACCMPD(), HPPACCVAD(), HPPACCVBD(), HPPACCVDA(), HPPACCVDB(), HPPACDIVD(), HPPACLONGDIVD(), HPPACMPYD(), HPPAC-
NSLD(), HPPACSLD(), HPPACSRD(), HPPACSUBD() - HP 3000-mode packed-decimal library
SYNOPSIS
DESCRIPTION
This set of calls invokes the library functions for emulating 3000-mode (MPE V/E) packed-decimal operations. These functions are in
library which is searched when the option is used with or ld(1).
Performs packed-decimal addition.
Compares two packed-decimal numbers.
Converts an ASCII representation to packed-decimal.
Converts a binary representation to packed-decimal.
Converts a packed-decimal number to ASCII.
Converts a packed-decimal number to binary.
Performs packed-decimal division.
Performs packed-decimal division (alternate routine).
Performs packed-decimal multiplication.
Performs a packed-decimal normalizing left shift.
Performs a packed-decimal left shift.
Performs a packed-decimal right shift.
Performs packed-decimal subtraction.
For all operations, the value returned in the variable to which the compcode argument points is one of the following values of type
Result > 0 or operand1 > operand2
Result < 0 or operand1 < operand2
Result == 0 or operand1 == operand2
For all operations, the value returned in the variable to which the pacstatus argument points is one of the following values of type Their
meanings are intended to be obvious:
AUTHOR
The HPPAC library was developed by HP.
SEE ALSO
PA-RISC Systems Only hppac(3X)