Sponsored Content
Full Discussion: Random float numbers in BASH
Top Forums Shell Programming and Scripting Random float numbers in BASH Post 302508302 by Corona688 on Sunday 27th of March 2011 05:47:50 PM
Old 03-27-2011
BASH doesn't support floating point numbers.

How about generating random digits 0-9 and appending that into a floating point number?
This User Gave Thanks to Corona688 For This Post:
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

adding float numbers

how to add 2 float values to each other? i tried this and it doesnt work: #!bin/bash numone=1.234 numtwo=0.124 total=`expr $numone + $numtwo` echo $total thanks (5 Replies)
Discussion started by: strike
5 Replies

2. Solaris

i cannot assign float point numbers to an array in solaris

total=0 declare -a sum limit=`iostat -En | grep -i size | awk '{print $2}' | sed -e 's/GB//g' | wc -l` echo "Limit is equal to $limit" ara="`iostat -En | grep -i size | awk '{print $2}' | sed -e 's/GB//g'`" for (( i=1; i<=$limit; i++ )) do sum=`echo $ara | cut -d " " -f $i` echo ${sum}... (11 Replies)
Discussion started by: naree
11 Replies

3. Solaris

can array store float point numbers

Hi all, I have doubt can array in a shell script can store floating point numbers. i have tired. but i unable to work it out. Please help me regarding this Thank U Naree (1 Reply)
Discussion started by: naree
1 Replies

4. Shell Programming and Scripting

Random numbers from 0 to 1000

Hello All, I want to make a simple script which generate random number from 0 to 1000. and simply display it. Plz HELP!!!!!! Regards, Waqas Ahmed (2 Replies)
Discussion started by: wakhan
2 Replies

5. Programming

comparison between float numbers

Hi, i have a simple control like this: if(sum>1.0)... If i try to print sum i get 1.000000 but the check returns true. I think it depends on float precision. How can i modify the check? thanks (1 Reply)
Discussion started by: littleboyblu
1 Replies

6. Shell Programming and Scripting

Generating random numbers

Hi, I am having trouble with generating random numbers. can this be done with awk? So I have a file that looks like this: 23 30 24 40 26 34 So column1 is start and column2 is end. I want to generate 3 random #'s between start and stop: So the output will look like this: ... (9 Replies)
Discussion started by: phil_heath
9 Replies

7. Homework & Coursework Questions

Random numbers

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! Write a shell script that will take the sum of two random number? Ex: Random n1 +Random n2 = result i tries to write it but i had some dufficulties ... (3 Replies)
Discussion started by: renegade755
3 Replies

8. Shell Programming and Scripting

Arithmetic on a Float in bash

I am using bash I have a script that takes a number, i.e. 85.152, which is always a non integer and essentially tries to get that number to be a multiple of 10. My code is as follows: number=85.152 A=${number%.*} #Converts float to integer typeset -i B=$(((A-20)/10)) #subtracting 20 is... (12 Replies)
Discussion started by: prodigious8
12 Replies

9. Shell Programming and Scripting

Help about using variables of float numbers in sed

Hi, I need to run a Fortran program which reads a input file with a fixed name many times, each time I need to change a number (real) in that input file, this is how I currently do it and I know it is not elegent at all: cp inputfile.dat backup.dat sed -i 's/28.0/0.01/g' inputfile.dat ./myCode... (3 Replies)
Discussion started by: dypang
3 Replies
ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
All times are GMT -4. The time now is 01:53 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy