Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: BC calculation for floating (invalid arithmetic operator )
Top Forums Shell Programming and Scripting BC calculation for floating (invalid arithmetic operator ) Post 302976383 by Don Cragun on Wednesday 29th of June 2016 01:56:31 AM
Old 06-29-2016
As Aia noted, the version of the Korn shell you're using makes a big difference here. With a 1993 or later version of ksh, your code might work. I'm not sure in this case that the OS matters much, but when asking questions like this, it is always a good policy to tell us what environment you're using.

The fact that the error messages that ksh printed did not come from the script you showed us makes us wonder what the other two lines before the if statement looked like and what the line that you removed before the elif looked like???

And, the fact that you're using sed to remove commas from the uptime output makes us wonder what locale you're using. The text in your output is English, but if you're removing commas, is the locale European or are the actions on the commas just there to confuse us???

Please show us:
  1. the actual code that produced those error messages,
  2. the output you get from running the command: /bin/ksh --version,
  3. the output you get from running the command: locale,
  4. and the output you get from running the command: uptime
(note that when displaying the output you get from running commands, the input that is given to commands, and code segments you should use CODE tags; not just when showing us code segments).

I would guess that you're using a 1988 version of ksh, but until I figure out what you're trying to do with the commas, I'm not sure how to address your problem.
This User Gave Thanks to Don Cragun For This Post:
alvintiow
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Arithmetic in floating point

is it not possible to simply di aritmetic without using bc or awk i have tried folllowing operatrions but they support only integer types plz suggest me code for floating using values stored in the variables.the ans i get is integer and if i input floating values i get error numeric constant... (6 Replies)
Discussion started by: sumit the cool
6 Replies

2. Shell Programming and Scripting

Arithmetic calculation on real numbers in Bourne Shell Script

I am begining to learn bourne shell and as a practice I have written a script which when given the purchase price and percentage of discount calculates the savings. I somehow cannot figure out why my script fails to do arthimatic calculation on real numbers. Could anyone look at the script... (5 Replies)
Discussion started by: Tirmazi
5 Replies

3. UNIX for Dummies Questions & Answers

syntax error: invalid arithmetic operator

hi, i have a bash script that i want to receive a a string from another bash file. But because the string has a dot in the middle it gives me an error. The error is in this line: let valor=$1 and the value passed is rules.txt the error is: let: valor=rules.txt: syntax error: invalid... (2 Replies)
Discussion started by: limadario
2 Replies

4. Shell Programming and Scripting

checking variables + arithmetic operator help

i'm trying to make a script to simply add numbers together for example i have a file script file called add add 1 2 3 4 5 15 however i want the user to put at least 3 numbers so i did this if then echo "please enter more than two numbers" exit 1 fi but it's telling me i have... (3 Replies)
Discussion started by: el3ctr0nic47
3 Replies

5. Programming

arithmetic calculation using awk

hi there again, i need to do a simple division with my data with a number of rows. i think i wanted to have a simple output like this one: col1 col2 col3 val1 val2 val1/val2 valn valm valn/valm any suggestion is very much appreciated. thanks much. (2 Replies)
Discussion started by: ida1215
2 Replies

6. Shell Programming and Scripting

floating point arithmetic operation error

I am writing a script in zsh shell, it fetchs a number from a file using the awk command, store it as a variable, which in my case is a small number 0.62000. I want to change this number by multiplying it by 1000 to become 620.0 using the command in the script var2=$((var1*1000)) trouble is... (2 Replies)
Discussion started by: piynik
2 Replies

7. Shell Programming and Scripting

Arithmetic calculation in variable

Hi, I am trying to do an addition to a value stored in a variable... var1=`grep -n "match" sample.txt|cut -d : -f1` var2=`echo $var1|cut -d " " -f1` (Here i want add +1 to the output value) (4 Replies)
Discussion started by: Kevin Tivoli
4 Replies

8. UNIX for Dummies Questions & Answers

Invalid arithmetic operator

Hi experts, I'm facing trouble with the below bash script, any help is appreciated #!/usr/bin/bash .. if (( "${date1}" > "${l_date1}" )) then echo "success" else echo "nothing" fi the variable date1 contains 08/06/2013 and l_date1 contains 10/08/2013 this small script to... (6 Replies)
Discussion started by: parpaa
6 Replies

9. UNIX for Beginners Questions & Answers

Invalid arithmetic operator on string concatenation

Hello. LEAP_VERSION="4.2" export ARRAY_MAIN_REPO_LEAP=('zypper_local' 'openSUSE-Leap-'"$LEAP_VERSION"'-Non-Oss' 'openSUSE-Leap-'"$LEAP_VERSION"'-Oss' 'openSUSE-Leap-'"$LEAP_VERSION"'-Update' 'openSUSE-Leap-'"$LEAP_VERSION"'-Update-Non-Oss')Seems that the - is interpreted as a numeric... (2 Replies)
Discussion started by: jcdole
2 Replies

10. OS X (Apple)

Gobsmacked by ksh93 floating point arithmetic.

Hi guys... I am working on limited basic set of maths routines for ksh93 that can be sourced as . ./ksh_math.sh and I am gobsmacked by its capabilities. Although some big guns may already know this, I didn't, and ksh93 is easily able to do floating point numbers to floating point powers and... (16 Replies)
Discussion started by: wisecracker
16 Replies

LEARN ABOUT NETBSD

cpuset_destroy

CPUSET(3)						   BSD Library Functions Manual 						 CPUSET(3)

NAME

     cpuset_create, cpuset_destroy, cpuset_zero, cpuset_set, cpuset_clr, cpuset_isset, cpuset_size -- dynamic CPU sets

SYNOPSIS

     #include <sched.h>

     cpuset_t *
     cpuset_create(void);

     void
     cpuset_destroy(cpuset_t *set);

     void
     cpuset_zero(cpuset_t *set);

     int
     cpuset_set(cpuid_t cpu, cpuset_t *set);

     int
     cpuset_clr(cpuid_t cpu, cpuset_t *set);

     int
     cpuset_isset(cpuid_t cpu, const cpuset_t *set);

     size_t
     cpuset_size(const cpuset_t *set);

DESCRIPTION

     This section describes the functions used to create, set, use and destroy the dynamic CPU sets.

     This API can be used with the POSIX threads, see pthread(3) and affinity(3).

     The ID of the primary CPU in the system is 0.

FUNCTIONS

     cpuset_create()
	      Allocates and initializes a clean CPU-set.  Returns the pointer to the CPU-set, or NULL on failure.

     cpuset_destroy(set)
	      Destroy the CPU-set specified by set.

     cpuset_zero(set)
	      Makes the CPU-set specified by set clean, that is, memory is initialized to zero bytes, and none of the CPUs set.

     cpuset_set(cpu, set)
	      Sets the CPU specified by cpu in set.  Returns zero on success, and -1 if cpu is invalid.

     cpuset_clr(cpu, set)
	      Clears the CPU specified by cpu in the CPU-set set.  Returns zero on success, and -1 if cpu is invalid.

     cpuset_isset(cpu, set)
	      Checks if CPU specified by cpu is set in the CPU-set set.  Returns the positive number if set, zero if not set, and -1 if cpu is
	      invalid.

     cpuset_size(set)
	      Returns the size in bytes of CPU-set specified by set.

SEE ALSO

     affinity(3), pset(3), sched(3), schedctl(8), kcpuset(9)

HISTORY

     The dynamic CPU sets appeared in NetBSD 5.0.

BSD
								 November 2, 2011							       BSD
All times are GMT -4. The time now is 07:56 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy