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How can I remove an SSH key?
...Lue adds another interesting corner case in the comments:
In case this helps anyone: I even tried deleting the id_rsa and id_rsa.pub files altogether, and the key was still showing up.
Turns out gpg-agent was caching them in a ~/.gnupg/sshcontrol file; I had to manually delete them from there.
T...
How to find/identify large commits in git history?
...e largest objects in your repo's pack file.
# Written for osx.
#
# @see https://stubbisms.wordpress.com/2009/07/10/git-script-to-show-largest-pack-objects-and-trim-your-waist-line/
# @author Antony Stubbs
# set the internal field separator to line break, so that we can iterate easily over the verif...
Compare DATETIME and DATE ignoring time portion
...BETWEEN operator doesn't work because it permits equality on both sides.
PS: Another means of extracting the date only (in older versions of SQL Server) is to use a trick of how the date is represented internally.
Cast the date as a float.
Truncate the fractional part
Cast the value back to a da...
How to open a specific port such as 9090 in Google Compute Engine
...090, in "Protocols and Ports" enter tcp:9090
Click Create
I hope this helps you.
Update Please refer to docs to customize your rules.
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Generating a UUID in Postgres for Insert statement?
...apt-get install postgresql-contrib has successfully run. Then I had to run psql -d dbname -f SHAREDIR/contrib/module.sql and now it works!!! select uuid_generate_v1(); returns 1 now now. Thanks so much!
– anon58192932
Sep 29 '12 at 22:13
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Interfaces with static fields in java for sharing 'constants'
...that the new syntax would be respected by all your index implementations.
PS: The inspiration for this example is drawn from the Neo4j spatial code.
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Storing money in a decimal column - what precision and scale?
... for storage. Accountants generally seem to favour four decimal places.
PS Avoid SQL Server's MONEY data type because it has serious issues with accuracy when rounding, among other considerations such as portability etc. See Aaron Bertrand's blog.
Microsoft and language designers chose banker'...
Rotating a point about another point (2D)
...
This is the answer by Nils Pipenbrinck, but implemented in c# fiddle.
https://dotnetfiddle.net/btmjlG
using System;
public class Program
{
public static void Main()
{
var angle = 180 * Math.PI/180;
Console.WriteLine(rotate_point(0,0,angle,new Point{X=10, Y=10}).Print()...
BLE协议—广播和扫描 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...向广播（ADV_IND）：可以被连接，可以回复扫描响应包，最常用的广播类型，适合大部分场景。
可连接的定向广播（ADV_DIRECT_IND）：可以被连接，不可以回复扫描响应包，适用于连接特定的主设备。
可扫描非定向广播（ADV_SCAN_IN...
Check if a string contains a string in C++
...and many other staff.You can compare std::string to the string api in Java.PS:Also I do think contains is much more elegant than find to check if a string contains another string.
– Geng Jiawen
Jun 23 '14 at 8:01
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