Generating a Random String of 'n' length Post: 302959521

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Generating random number within a specific range (0.5-1.5)

Hello, need a way to generate numbers within 0.5-1.5 range Has to be totally random: 0.6 1.1 0.8 1.5 0.6 and so on.... How to?

2. 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: ...

3. Programming

generating 16 digit random number in C

Hi, How can we generate 16 digit random nos in C.

4. Programming

C Help; generating a random number.

Im new to C, and Im having a hard time getting a random number. In bash, I would do something similar to the following to get a random number; #!/bin/bash seed1=$RANDOM seed2=$RANDOM seed3=$RANDOM SEED=`expr $seed1 * $seed2 / $seed3` echo ${SEED%.*} Now, in online examples...

5. Shell Programming and Scripting

Generating Gaussian Distributed Random Numbers

I want to generate an awk function that generated a Gaussian distributed set of random numbers. I need to implement the thing below in awk. Rnd is just a uniform random number between 0 and 1 function rgaussian(r1, r2) { Do v1 = 2 * Rnd - 1 v2 = 2 * Rnd - 1 ...

6. Shell Programming and Scripting

Remove 3rd character from the end of a random-length string

Hi, I hope someone can share there scripting fu on my problem, I would like to delete the 3rd character from a random length of string starting from the end Example Output Hope you can help me.. Thanks in advance..

7. UNIX for Dummies Questions & Answers

Generating 512MB file with dd using random data

Hello. Could anyone help me with my little annoying problem? I have to generate a 512 MB file made up with random data using DD. After some internet digging I found out that the command is: dd if=/dev/urandom of=/exemple/file bs=512MB After running this command the...

8. Shell Programming and Scripting

Generating Random Number in certain range

Hi there I am trying to generate a random number between 40 and 70 using the shell here is my code so far and it keeps going above 70. all help much appreciated! comp=$(( RANDOM%70+40 )) echo $comp

9. Shell Programming and Scripting

Random number generating script?

Having a hard time with this. Very new to scripting and linux. Spent all sunday trying to do this. Appreciate some help and maybe help breaking down what the syntax does. Create a Bash program. It should have the following properties • Creates a secret number between 1 and 100 i. The...

10. Shell Programming and Scripting

Generating a POSIX random number?

Hi Guys and gals... As you know I am getting to grips with POSIX and hit this stumbling block. Generating two random numbers 0 to 255 POSIXly. Speed in not important hence the 'sleep 1' command. I have done a demo that works, but it sure is ugly! Is there a better way? #!/bin/sh # Random...

LEARN ABOUT SUSE

mcookie

MCOOKIE(1)						     Linux Programmer's Manual							MCOOKIE(1)

NAME

       mcookie - generate magic cookies for xauth

SYNOPSIS

       mcookie [-v] [-f filename]

DESCRIPTION

       mcookie generates a 128-bit random hexadecimal number for use with the X authority system.  Typical usage:
	      xauth add :0 . `mcookie`

       The  "random"  number generated is actually the output of the MD5 message digest fed with various pieces of random information: the current
       time, the process id, the parent process id, the contents of an input file (if -f is specified), and several bytes of information from  the
       first of the following devices which is present: /dev/random, /dev/urandom, files in /proc, /dev/audio.

BUGS

       The entropy in the generated 128-bit is probably quite small (and, therefore, vulnerable to attack) unless a non-pseudorandom number gener-
       ator is used (e.g., /dev/random under Linux).

       It is assumed that none of the devices opened will block.

FILES

       /dev/random
       /dev/urandom
       /dev/audio
       /proc/stat
       /proc/loadavg

SEE ALSO

       X(1), xauth(1), md5sum(1)

AVAILABILITY

       The mcookie command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.

								 25 September 1995							MCOOKIE(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Generating random number within a specific range (0.5-1.5)

Discussion started by: TehOne

2. Shell Programming and Scripting

Generating random numbers

Discussion started by: phil_heath

3. Programming

generating 16 digit random number in C

Discussion started by: ajaysahoo

4. Programming

C Help; generating a random number.

Discussion started by: trey85stang