I tried looking for the answer online and came up with only a few semi-answers as to why file and directory names are case sensitive in Unix. Right off the bat, I'll say this doesn't bother me. But I run into tons of Windows and OpenVMS admins in my day job who go batty when they have to deal... (3 Replies)
When we login to any remote connections in SuSE Linux, say for example, telnet , the following line is displayed "Last Login : Date and time is displayed"
I would like to disable this. In SuSE 9, I could find the solution .
Please suggest me a solution to disable the line displayed for SuSE... (3 Replies)
Hi All,
My question is how can i stop my users on system from deleting their history.
How can i stop the users from running 'history -c'.
I have searched thoroughly on the forum but didn't find any satisfactory solution to the problem.
kindly help if you any suggestions
Thanx in... (3 Replies)
Hi everybody Im Megadrink!!!
This is my first thred.
Ive recently been introduced to Unix and i was interested in Unix's History. Can anyone give me a breif History On Unix. Just when it was invented/released. Maybe someother cool things about it.
Thx for the information in advance!! :D (2 Replies)
Hi All,
Is there a way to check command executed by users in Linux for a specific date? I know we can use history, but it doesn't shows yesterday's executed commands.
rgds, (3 Replies)
Hello All, Good Morning.
I am trying to erase history list in my linux box, but my below command is failing. What is the actual way to clear it?
> history clear
-bash: history: clear: numeric argument required
Also when I run my commands in my command prompt, my team lead can see my... (7 Replies)
I am pleased to announce this new video in 1080 HD for UNIX lovers honoring thirty years of UNIX history spanning from 1969 to 1999 presented in 150 seconds (two and a half minutes) in 1080 HD, celebrating the 50th anniversary of UNIX.
The Great History of UNIX (1969-1999) | 30 Years of UNIX... (8 Replies)
hello all
i have application which according to AWS monitoring is reaching to high spikes of IO at random time .
and causing the server to crash and restart .
my question is how can i find out what cause the spike and if i can't with the native linux tools
what free open source minimon... (6 Replies)
Discussion started by: umen
6 Replies
LEARN ABOUT PHP
mt_rand
MT_RAND(3) 1 MT_RAND(3)mt_rand - Generate a better random valueSYNOPSIS
int mt_rand (void )
DESCRIPTION
int mt_rand (int $min, int $max)
Many random number generators of older libcs have dubious or unknown characteristics and are slow. By default, PHP uses the libc random
number generator with the rand(3) function. The mt_rand(3) function is a drop-in replacement for this. It uses a random number generator
with known characteristics using the Mersenne Twister, which will produce random numbers four times faster than what the average libc
rand() provides.
If called without the optional $min, $max arguments mt_rand(3) returns a pseudo-random value between 0 and mt_getrandmax(3). If you want a
random number between 5 and 15 (inclusive), for example, use mt_rand(5, 15).
Caution
This function does not generate cryptographically secure values, and should not be used for cryptographic purposes. If you need a
cryptographically secure value, consider using random_int(3), random_bytes(3), or openssl_random_pseudo_bytes(3) instead.
PARAMETERS
o $min
- Optional lowest value to be returned (default: 0)
o $max
- Optional highest value to be returned (default: mt_getrandmax(3))
RETURN VALUES
A random integer value between $min (or 0) and $max (or mt_getrandmax(3), inclusive), or FALSE if $max is less than $min.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.3.4 | |
| | |
| | Issues an E_WARNING and returns FALSE if $max < |
| | $min. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
mt_rand(3) example
<?php
echo mt_rand() . "
";
echo mt_rand() . "
";
echo mt_rand(5, 15);
?>
The above example will output something similar to:
1604716014
1478613278
6
NOTES
Caution
The distribution of mt_rand(3) return values is biased towards even numbers on 64-bit builds of PHP when $max is beyond 2^32. This
is because if $max is greater than the value returned by mt_getrandmax(3), the output of the random number generator must be scaled
up.
SEE ALSO mt_srand(3), mt_getrandmax(3), random_int(3), random_bytes(3), openssl_random_pseudo_bytes(3), rand(3).
PHP Documentation Group MT_RAND(3)