04-28-2008
firstname.surname firstname.surname firstname.surname
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1. UNIX for Dummies Questions & Answers
Hi All,
I am trying to write a script to list all users and their processes. I cant seem to find out how to link the PID to the user. For example if i run ps -a I get a nice list of all the processes running and their PID, but no information about which user is running them.
If i use w i... (17 Replies)
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2. Shell Programming and Scripting
Hi guys,
I'm writing a script to display all the current logged on users and the processes they're running, output to a file. The output will look similar to this:
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PID TTY TIME CMD
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User2
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hello, i am VERY new to this whole script world. I need to come up with a script that will email a user if they have an idle process past 500 minutes...any suggestions??? Thanks so much. (0 Replies)
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4. UNIX for Dummies Questions & Answers
I am trying to write a script to list all users and their processes. I cant seem to find out how to link the PID to the user. For example if i run ps -a I get a nice list of all the processes running and their PID, but no information about which user is running them. I need the users real name not... (3 Replies)
Discussion started by: iago
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5. Shell Programming and Scripting
Thx for all the help so far, I really appreciate it, this is the last task I have to do then I am no longer a trainee ^^, which means I can use whatever utility I want. :O
I need to write a script that does more or less what is shown below.
The Users Name
PID TTY TIME CMD
12345 pts/3... (22 Replies)
Discussion started by: barbus
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6. Programming
Hello All,
Background
========
I am creating a virtual appliance console for a software stack on VMware ESXi. I am using Centos 5.x as the Linux distro (Guest OS). I have created a ncurses based application that does the user authentication and present him with some basic controls to do basic... (2 Replies)
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7. Shell Programming and Scripting
Hello,
What i have to do is make a top 10 list of users sorted by the number of processes opened at a given time. Can anyone help me with finding out for a given moment, for all users how many processes each had opened? (5 Replies)
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8. Shell Programming and Scripting
Is it possible to get a list of users sorted by the number of processes executed by each.
I have a HP - UX server with 2800 processes running currently.
And I want to know the number of processes owned by each person logged in to that server.something like below:
user1 : 150 Processes
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9. UNIX for Dummies Questions & Answers
hello,
i need help with something which should be fairly simple but i am having a little trouble.
i need to list all the processes on the system but also need the parent id.
so the following does not print parent id.
ps -A or ps -e.
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--ppid
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10. Homework & Coursework Questions
I would like to get an opinion for my solution for this task and get feedback about better approach or mistakes I have made.
1. The problem statement, all variables and given/known data:
The task is to create a script which prints information about users whose names are specified in the... (2 Replies)
Discussion started by: kornfan
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LEARN ABOUT PHP
filter_var
FILTER_VAR(3) 1 FILTER_VAR(3)
filter_var - Filters a variable with a specified filter
SYNOPSIS
mixed filter_var (mixed $variable, [int $filter = FILTER_DEFAULT], [mixed $options])
DESCRIPTION
PARAMETERS
o $variable
- Value to filter.
o $filter
- The ID of the filter to apply. The "Types of filters" manual page lists the available filters. If omitted, FILTER_DEFAULT will
be used, which is equivalent to FILTER_UNSAFE_RAW. This will result in no filtering taking place by default.
o $options
- Associative array of options or bitwise disjunction of flags. If filter accepts options, flags can be provided in "flags" field
of array. For the "callback" filter, callable type should be passed. The callback must accept one argument, the value to be fil-
tered, and return the value after filtering/sanitizing it.
<?php
// for filters that accept options, use this format
$options = array(
'options' => array(
'default' => 3, // value to return if the filter fails
// other options here
'min_range' => 0
),
'flags' => FILTER_FLAG_ALLOW_OCTAL,
);
$var = filter_var('0755', FILTER_VALIDATE_INT, $options);
// for filter that only accept flags, you can pass them directly
$var = filter_var('oops', FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE);
// for filter that only accept flags, you can also pass as an array
$var = filter_var('oops', FILTER_VALIDATE_BOOLEAN,
array('flags' => FILTER_NULL_ON_FAILURE));
// callback validate filter
function foo($value)
{
// Expected format: Surname, GivenNames
if (strpos($value, ", ") === false) return false;
list($surname, $givennames) = explode(", ", $value, 2);
$empty = (empty($surname) || empty($givennames));
$notstrings = (!is_string($surname) || !is_string($givennames));
if ($empty || $notstrings) {
return false;
} else {
return $value;
}
}
$var = filter_var('Doe, Jane Sue', FILTER_CALLBACK, array('options' => 'foo'));
?>
RETURN VALUES
Returns the filtered data, or FALSE if the filter fails.
EXAMPLES
Example #1
A filter_var(3) example
<?php
var_dump(filter_var('bob@example.com', FILTER_VALIDATE_EMAIL));
var_dump(filter_var('http://example.com', FILTER_VALIDATE_URL, FILTER_FLAG_PATH_REQUIRED));
?>
The above example will output:
string(15) "bob@example.com"
bool(false)
SEE ALSO
filter_var_array(3), filter_input(3), filter_input_array(3), "Types of filters", information about the callback type.
PHP Documentation Group FILTER_VAR(3)