Going to its roots, Logstash has the ability to parse and store syslog data. This example shows a basic configuration that gets you to that.
input {
file {
path => [
"/var/log/syslog",
"/var/log/auth.log"
]
type => "syslog"
}
}...
Using many ECHO commands to create a batch file:
(
echo echo hi, this is the date today
echo date /T
echo echo created on %DATE%
echo pause >nul
)>hi.bat
The command interpreter treats the whole section in parenthesis as a single command, then saves all the output to hi.bat.
...
Simple Hello World Application:
using System;
namespace HelloWorld
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Hello World");
}
}
}
Equivalent IL Code (which will be JIT compiled)
// Microsoft (R) ...
Completion can be used to match words used in a document. When typing a word, Ctrlp or Ctrln will match previous or next similar words in the document.
This can even be combined with Ctrl-X mode to complete entire lines. For instance type something like:
This is an example sentence.
then go to ...
Nested for loops may be used to iterate over a number of unique iterables.
result = []
for a = iterable_a
for b = iterable_b
push!(result, expression)
end
end
Similarly, multiple iteration specifications may be supplied to an array comprehension.
[expression for a = iterabl...
Generator comprehensions follow a similar format to array comprehensions, but use parentheses () instead of square brackets [].
(expression for element = iterable)
Such an expression returns a Generator object.
julia> (x^2 for x = 1:5)
Base.Generator{UnitRange{Int64},##1#2}(#1,1:5)
Fun...
&& chains two commands. The second one runs only if the first one exits with success.
|| chains two commands. But second one runs only if first one exits with failure.
[ a = b ] && echo "yes" || echo "no"
# if you want to run more commands within a logical c...
The | takes the output of the left command and pipes it as input the right command. Mind, that this is done in a subshell. Hence you cannot set values of vars of the calling process wihtin a pipe.
find . -type f -a -iname '*.mp3' | \
while read filename; do
mute --noise "...
BFS can be used to find the connected components of an undirected graph. We can also find if the given graph is connected or not. Our subsequent discussion assumes we are dealing with undirected graphs.The definition of a connected graph is:
A graph is connected if there is a path between every p...
Event Type-
DDL_COMMAND_START
DDL_COMMAND_END
SQL_DROP
This is example for creating an Event Trigger and logging DDL_COMMAND_START events.
CREATE TABLE TAB_EVENT_LOGS(
DATE_TIME TIMESTAMP,
EVENT_NAME TEXT,
REMARKS TEXT
);
CREATE OR REPLACE FUNCTION FN_LOG_EVENT()
RETURNS EVE...
This example shows a very basic example of how to utilize onCommand. I don't suggest processing your commands directly in onCommand, but this does the trick for this simple case.
In this example we attempt to set the player's gamemode.
The first thing we need to do is make sure that the sender isn...
A C library header can usually be included into a C++ program, since most declarations are valid in both C and C++. For example, consider the following foo.h:
typedef struct Foo {
int bar;
} Foo;
Foo make_foo(int);
The definition of make_foo is separately compiled and distributed with the...
To use jquery in your Angular 2.x components, declare a global variable on the top
If using $ for jQuery
declare var $: any;
If using jQuery for jQuery
declare var jQuery: any
This will allow using $ or jQuery into your Angular 2.x component.
The Sales Orders screen (SO.30.10.00) is a perfect example of a data entry form with a composite primary key. The primary key on the Sales Orders screen is composed by the Order Type and the Order Number:
The recommended 2-step strategy to export data from the Sales Orders screen or any other dat...
A single line comment starts with two hyphens (--) and extends up to the end of the line. Example :
-- This process models the state register
process(clock, aresetn)
begin
if aresetn = '0' then -- Active low, asynchronous reset
state <= IDLE;
elsif rising_edge(clock) then --...
Starting with VHDL 2008, a comment can also extend on several lines. Multi-lines comments start with /* and end with */. Example :
/* This process models the state register.
It has an active low, asynchronous reset
and is synchronized on the rising edge
of the clock. */
process(clock, ...
Starting a new comment (single line or delimited) inside a comment (single line or delimited) has no effect and is ignored. Examples:
-- This is a single-line comment. This second -- has no special meaning.
-- This is a single-line comment. This /* has no special meaning.
/* This is not a
si...
