03-05-2009
float input
My problem is to input float value.
I have done it in this way
#!bin/bash
sum=0.0
read a
sum=`expr $a + $sum | bc`
echo sum
but when i entered float no. then it is giving expr...non numeric argument .
ok
thanx any ways
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi everybody,
I want to know how can i use the command 'expr' to manipulate float number , i have a shell bash and when (for example) i do:
y1=`expr \( 1/ 16 \)`
it returns 0
and if i do
y1=`expr \( 1.6 / 16 \)`
it returns non numeric argument.
is there another command for mathematic... (4 Replies)
Discussion started by: mips
4 Replies
2. Shell Programming and Scripting
I had a variable 1:80 8 in one varialbe say var=1:80 8
i comapred the below
if
then
--
else
----
thought if condition is true its always going in the else condition....its not giving any compilation errror also....is there any problem bcoz of space...
can some one help... (3 Replies)
Discussion started by: mkan
3 Replies
3. UNIX for Dummies Questions & Answers
As expr is used for integer calculations, which command is used for float calculations. (1 Reply)
Discussion started by: sharmavr
1 Replies
4. Programming
Good morning,
I'm testing the use of ceilf:
/*Filename: str.c*/
#include <stdio.h>
#include <math.h>
int main (void)
{
float ceilf(float x);
int dev=3, result=0;
float tmp = 3.444f;
printf("Result: %f\n",ceilf(tmp));
return 0;
} (1 Reply)
Discussion started by: jonas.gabriel
1 Replies
5. UNIX for Dummies Questions & Answers
I want to input a float data and add them in shell in linux. I am new user of it can anyone tell me how I can do it?
thanx (5 Replies)
Discussion started by: purva
5 Replies
6. Programming
i am adding two floating point numbers and i want to store in a character pointer...
float f1 ;
float f2 ;
char *c = NULL;
printf("Enter 2 floating numbers\n");
scanf("%f %f",&f1,&f2);
f1 = f1+f2;
sprintf(c, "%f", f1 );
when i execute this, i am... (3 Replies)
Discussion started by: pgmfourms
3 Replies
7. Shell Programming and Scripting
I have a file with 2 columns . One of the line looks like the following.
Is it possible to convert every float no in column 2 to integer.
input
NM_032881 6.03787973608527e-05
output
0.0000603787..... (2 Replies)
Discussion started by: quincyjones
2 Replies
8. Shell Programming and Scripting
I'm trying to only read price (FLOAT (i.e 1.10, 3.14, etc etc))
If the input is just an integer, I will add a .00 behind. (i.e 3 becomes 3.00 , 20 becomes 20.00)
If the input is without 2 decimal places, I'll add a 0. (i.e 3.1 becomes 3.10)
I tried using the below code, it works but I don't... (6 Replies)
Discussion started by: andylbh
6 Replies
9. Red Hat
:confused:We have two servers one active and one stand by
as follows Active 202.61.9.9
Stand by 202.61.9.10
Float IP 202.61.9.8
What is use of this float IP?
How it is configured? (1 Reply)
Discussion started by: manalisharmabe
1 Replies
10. Shell Programming and Scripting
Hi everyone,
I'm having some trouble with float array.
When i try to get the array sum with float numbers i get this error line 39: soma + 2.34 | bc: syntax error: invalid arithmetic operator (error token is ".34 | bc")
26 Somar() {
27 echo "Quantos numeros deseja somar?"
28 read... (4 Replies)
Discussion started by: berveglieri
4 Replies
sum(1) General Commands Manual sum(1)
NAME
sum - print checksum and block or byte count of file(s)
SYNOPSIS
[file ...]
Remarks
is obsolescent and should not be used in new applications that are intended to be portable between systems. Use instead (see cksum(1)).
DESCRIPTION
calculates and prints to standard output a checksum for each named file, and also prints the size of the file in 512 byte blocks, rounded
up.
The default algorithm is a 16-bit sum of the bytes in which overflow is ignored. Alternate algorithms can be selected with the and
options.
Standard input is used if no file names are given.
is typically used to verify data integrity when copying files between systems.
Options
recognizes the following options:
Use an alternate algorithm in which the 16-bit sum is right rotated
with each byte in computing the checksum.
Use the 32-bit cyclical redundancy check (CRC) algorithm used by
RETURN VALUE
returns the following values upon completion:
All files were processed successfully.
One or more files could not be read or some other error occurred.
If an inaccessible file is encountered, continues processing any remaining files, but the final exit status is affected.
DIAGNOSTICS
Read error conditions are indistinguishable from end of file on most devices; check the block or byte count.
WARNINGS
This command is likely to be withdrawn from X/Open standards. Applications using this command might not be portable to other vendors'
platforms. The usage of cksum(1) is recommended.
SEE ALSO
cksum(1), wc(1).
STANDARDS CONFORMANCE
sum(1)