SRAND(3P) POSIX Programmer's Manual SRAND(3P)PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
NAME
srand -- pseudo-random number generator
SYNOPSIS
#include <stdlib.h>
void srand(unsigned seed);
DESCRIPTION
Refer to rand().
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan-
dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source
files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE /The Open Group 2013 SRAND(3P)
Check Out this Related Man Page
SRAND48(3P) POSIX Programmer's Manual SRAND48(3P)PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
NAME
srand48 -- seed the uniformly distributed double-precision pseudo-random number generator
SYNOPSIS
#include <stdlib.h>
void srand48(long seedval);
DESCRIPTION
Refer to drand48().
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan-
dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source
files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE /The Open Group 2013 SRAND48(3P)
One way of getting epoch time in solaris is
truss date 2>&1 | awk '/^time/{print $3}'
Is there any other simple command that can be run from Korn Shell to display epoch time in solaris 5.10? (3 Replies)
Hi,
Do anybody knows how to use awk or any command to random print out 1000 number which start from range 1 to 150000?
I know that "rand" in awk can do similar random selection.
But I have no idea how to write a code that can random pick 1000 number from range 1 to 150000 :confused:
... (1 Reply)
Hi,
Is anybody experience generate a pair of random number by using awk command?
I wanna to generate a pair of random number (range from 1 to 4124) and repeats it 416 times.
Desired output
2 326
123 1256
341 14
3245 645
.
.
.
I did write the below command:
awk... (5 Replies)
Ok guys, gals and geeks...
As from today I am starting to learn awk in earnest doing something totally different.
I am going to create a pseudo-Audio_Function Generator centred around OSX 10.11.x minimum. The code below is a tester to see what the possibilities are.
All waveforms will be... (11 Replies)
I have a file contains thousands of lines. I want to insert n random numbers into each line at
specific position. Like this:
0 22……
1 33……
……
……
I want to insert 3 random numbers from position 2 to 4 into each line.
0 325 22……
1 685 33……
……
……
Please use CODE tags when... (8 Replies)
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... (12 Replies)
Hi to everybody
again i Need your help, i wasting hours but can't find a solutuin for my Problem. I am not an expert with AIX script programming.
I have a csh script and i need the time in seconds but since i have an old AIX the Option -%s doesnot exist with the date command. I seach in Google... (13 Replies)
Hi there, friends!
Writing exams again! This time my wish would be to randomize certain columns in a csv file. Given a file containing records consisting of 3 columns tab-separated:
A B C
A B C
A B C
I would love to get the columns of each record in random order...separated by a tab as... (12 Replies)
Hey,
Just added a new UserCP option so you can change the code tags to look like the code tags in this example (turn this on and off):
Note: I set the default to "SyntaxHighlighting" for debugging purposes. We can change the default back to the original code tags later.
... (36 Replies)
Having trouble with the logic when looping over this switch case again:
for (j = 0; data != 0; j++){
switch(data){
case 'c':
output = ranit(r_brace_array);
break;
case 'h':
output = ranit(pipe_array);
break;
... (6 Replies)
current date command runs well
awk -v t="$(date +%Y-%m-%d)" -F "'" '$1 < t' myname.dat
subtract 30 days fails
awk -v t="$(date --date="-30days" +%Y-%m-%d)" -F "'" '$1 < t' myname.dat
awk command in hp unix subtract 30 days automatically from current date without date illegal option error... (20 Replies)