Is anyone know some scripts to generate random number without repetition using bash; for example generate 10 different random numbers.
Thanks (8 Replies)
I need to edit a list of numbers on the following form:
1 1.0
2 1.4
5 2.1
7 1.9
I want:
1 1.0
2 1.4
3 0.0
4 0.0
5 2.1
6 0.0
7 1.9
(i want to add the missing number in column 1 together with 0.0 in column 2).
I guess it is rather trivial but i didn't even manage to read column... (5 Replies)
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)
Hi Guys I have a script to find Ranomd numbers. But I want to make the file to produce more random. Could u guys help me plz.
In this Script I have the code that generates random in for loop and the range I have specified in my %chromlength
input and out put will be like this
chrno start end... (3 Replies)
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)
Hi
I'm trying to generate random numbers both in parent process and the child process. But I get the same random number in both processes. Why doesn't it generate different numbers altough I seed random number generator?
Here's my code:
#include <stdio.h>
#include <unistd.h>
#include... (2 Replies)
Hi All,
I have 100 files with names like this:
1.dat, 2.dat, 3.dat until 100.dat.
My dat files look like this:
42323 0
438939 1
434 0
0.9383
3434
120.23 3
234
As you can see in the second column, some numbers are missing. I want to fill those missing places with 0's in all... (3 Replies)
hi guys,
I am writing a c program that generates a two dimensional array to make matrix and a vector of random numbers and perform multiplication. I can't figure out whats wrong with my code. It generates a matrix of random numbers but all the numbers in the vector array is same and so is the... (2 Replies)
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
LEARN ABOUT PLAN9
bn_rand
BN_rand(3SSL) OpenSSL BN_rand(3SSL)NAME
BN_rand, BN_pseudo_rand - generate pseudo-random number
SYNOPSIS
#include <openssl/bn.h>
int BN_rand(BIGNUM *rnd, int bits, int top, int bottom);
int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom);
int BN_rand_range(BIGNUM *rnd, BIGNUM *range);
int BN_pseudo_rand_range(BIGNUM *rnd, BIGNUM *range);
DESCRIPTION
BN_rand() generates a cryptographically strong pseudo-random number of bits bits in length and stores it in rnd. If top is -1, the most
significant bit of the random number can be zero. If top is 0, it is set to 1, and if top is 1, the two most significant bits of the number
will be set to 1, so that the product of two such random numbers will always have 2*bits length. If bottom is true, the number will be
odd.
BN_pseudo_rand() does the same, but pseudo-random numbers generated by this function are not necessarily unpredictable. They can be used
for non-cryptographic purposes and for certain purposes in cryptographic protocols, but usually not for key generation etc.
BN_rand_range() generates a cryptographically strong pseudo-random number rnd in the range 0 <lt>= rnd < range. BN_pseudo_rand_range()
does the same, but is based on BN_pseudo_rand(), and hence numbers generated by it are not necessarily unpredictable.
The PRNG must be seeded prior to calling BN_rand() or BN_rand_range().
RETURN VALUES
The functions return 1 on success, 0 on error. The error codes can be obtained by ERR_get_error(3).
SEE ALSO bn(3), ERR_get_error(3), rand(3), RAND_add(3), RAND_bytes(3)HISTORY
BN_rand() is available in all versions of SSLeay and OpenSSL. BN_pseudo_rand() was added in OpenSSL 0.9.5. The top == -1 case and the
function BN_rand_range() were added in OpenSSL 0.9.6a. BN_pseudo_rand_range() was added in OpenSSL 0.9.6c.
1.0.1e 2013-02-11 BN_rand(3SSL)