Hey. This is pretty easy stuff but I'm learning the basics of Unix at the moment so keep that in mind. I have to:
1) Write a C-shell script to monitor user activity on the server for 13 minutes.
2) Then print the smallest and largest number of users during these 13 minutes.
I have this:
1)... (2 Replies)
Hey,
This is a long-shot however, I am stuck with the following problem:
I have the output from ls -la, and I want to sort some of that data out by using AWK to filter it.
ls -la | awk -f scriptname.awk
Input:
For example:
drwxr-xr-x 3 user users 4096 2010-03-14 20:15 bin/... (5 Replies)
I need to calculate the biggest number in array size n.
Example: Users enter: 1 7 4 9
The biggest number is : 9
Simple but I'm really new on this on Shell/Bash! Anything will be helpful! Thanks!
#!/bin/bash
printf "\tEnter a list of numbers, with spaces: "
read -a ARRAY
BIG=$1... (5 Replies)
Hi,
Anybody know how to print out the record that shown smallest number among column 3 and column 4
Case 1 Input :
37170 37196 77 51
37174 37195 73 52
37174 37194 73 53
Case 1 Output :
37170 37196 77 51
Case 2 Input :
469613 469660 73 ... (4 Replies)
Hello,
I have often found bash to be difficult when it comes to floating point numbers. I have data with rows of tab delimited floating point numbers. I need to find the smallest number in each row that is not 0.0. Numbers can be negative and they do not come in any particular order for a given... (9 Replies)
Discussion started by: LMHmedchem
9 Replies
LEARN ABOUT PHP
rand
RAND(3) 1 RAND(3)rand - Generate a random integerSYNOPSIS
int rand (void )
DESCRIPTION
int rand (int $min, int $max)
If called without the optional $min, $max arguments rand(3) returns a pseudo-random integer between 0 and getrandmax(3). If you want a
random number between 5 and 15 (inclusive), for example, use 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.
Note
On some platforms (such as Windows), getrandmax(3) is only 32767. If you require a range larger than 32767, specifying $min and
$max will allow you to create a range larger than this, or consider using mt_rand(3) instead.
PARAMETERS
o $min
- The lowest value to return (default: 0)
o $max
- The highest value to return (default: getrandmax(3))
RETURN VALUES
A pseudo random value between $min (or 0) and $max (or getrandmax(3), inclusive).
EXAMPLES
Example #1
rand(3) example
<?php
echo rand() . "
";
echo rand() . "
";
echo rand(5, 15);
?>
The above example will output something similar to:
7771
22264
11
SEE ALSO srand(3), getrandmax(3), mt_rand(3), random_int(3), random_bytes(3), openssl_random_pseudo_bytes(3).
PHP Documentation Group RAND(3)