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Can I grep only the first n lines of a file?
...ons here using head have used -n 10 (including me) not realizing that head by default displays only 10 lines. :)
– jaypal singh
Jan 7 '12 at 1:05
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How to find SQL Server running port?
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This is another script that I use:
-- Find Database Port script by Jim Pierce 09/05/2018
USE [master]
GO
DECLARE @DynamicportNo NVARCHAR(10);
DECLARE @StaticportNo NVARCHAR(10);
DECLARE @ConnectionportNo INT;
-- Look at the port for the current connection
SELECT @ConnectionportNo = [l...
How to include PHP files that require an absolute path?
...NT_ROOT"]);
include "$root/inc/include1.php";
Edit: added imporvement by aussieviking
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Using Html.ActionLink to call action on different controller
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As of 2019, this feature is implemented in ReSharper by JetBrains. It's actually very helpful for this circumstance.
– Jamie
Jul 25 '19 at 18:13
add a co...
Count table rows
...noDB, this value is
an approximation, and may vary from the actual value by as much as 40%
to 50%. In such cases, use SELECT COUNT(*) to obtain an accurate
count.
This also is fastest way to see the row count on MySQL, because query like:
select count(*) from table;
Doing full table scan ...
What do < and > stand for?
... Hah. Always thought "Left Tag" and "Right Tag", but maybe RT was taken by Return, so it's using letter G from right instead of R...
– jeffkee
Oct 30 '19 at 23:34
add a com...
Get the previous month's first and last day dates in c#
...at start after 12:00 AM on the last day of the month. You could solve this by changing the last line to read var last = month.AddTicks(-1);
– SixOThree
Dec 22 '14 at 22:12
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Arduino101（Genuino 101）&App Inventor – RGB LED控制 - 创客硬件开...
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// BLE LED Switch Characteristic - custom 128-bit UUID, read and writable by central
BLEUnsignedIntCharacteristic LEDStatus("19B10011-E8F2-537E-4F6C-D104768A1214", BLERead | BLEWrite );
int incom = 0;
int r, g, b ;
void setup() {
Serial.begin(9600);
//...
Nullable types and the ternary operator: why is `? 10 : null` forbidden? [duplicate]
...not be null (the third operand of the conditional operator) it complains.
By casting the null to a Nullable<int> we are telling the compiler explicitly that the return type of this expression shall be a Nullable<int>. You could have just as easily casted the 10 to int? as well and had ...
Xcode + remove all breakpoints
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In Xcode, you can also do by right clicking the project name on the breakpoints tab and then you can see the options for deleting all breakpoints including disabling and sharing breakpoints.
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