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Bash syntax error: unexpected end of file
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If you can Edit your bash file with Notepad++. Go to Edit-> EOL Conversion-> Macintosh(CR). Change it to Macintosh(CR) even if you are using Windows OS.
– Juniar
Jul 28 '17 at 13:5...
Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...lbackObject 是一个IRTDUpdateEvent类型的参数，它有一个UpdateNotify方法，用于通知Excel有更新的数据可用（push）。这样Excel就会通过调用RefreshData方法来刷新所有的主题（pull）。当 Excel 请求RTD Server的第一个 RTD 主题时调用ServerStart方法...
INSERT … ON DUPLICATE KEY (do nothing)
...id=id (it won't trigger row update even though id is assigned to itself).
If you don't care about errors (conversion errors, foreign key errors) and autoincrement field exhaustion (it's incremented even if the row is not inserted due to duplicate key), then use INSERT IGNORE.
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How to load local script files as fallback in cases where CDN are blocked/unavailable? [duplicate]
...ded you can check for existence any variable/function this script defines, if it is undefined - then cdn failed and you need to load local script copy.
On this principle are based solutions like that:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
&l...
How can I split a shell command over multiple lines when using an IF statement?
... command over multiple lines in the shell, when the command is part of an if statement?
2 Answers
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In Bash, how to add “Are you sure [Y/n]” to any command or alias?
...r, for Bash >= version 3.2:
read -r -p "Are you sure? [y/N] " response
if [[ "$response" =~ ^([yY][eE][sS]|[yY])$ ]]
then
do_something
else
do_something_else
fi
Note: If $response is an empty string, it will give an error. To fix, simply add quotation marks: "$response". – Always use...
In c# is there a method to find the max of 3 numbers?
...ll, you can just call it twice:
int max3 = Math.Max(x, Math.Max(y, z));
If you find yourself doing this a lot, you could always write your own helper method... I would be happy enough seeing this in my code base once, but not regularly.
(Note that this is likely to be more efficient than Andrew'...
Pad a string with leading zeros so it's 3 characters long in SQL Server 2008
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If the field is already a string, this will work
SELECT RIGHT('000'+ISNULL(field,''),3)
If you want nulls to show as '000'
It might be an integer -- then you would want
SELECT RIGHT('000'+CAST(field AS VARCHAR(3)),3)
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method overloading vs optional parameter in C# 4.0 [duplicate]
...this approach - FYI you cannot change the name of parameters going forward if you use named parameters in caller, unless changing it in each caller (which is simple refactoring if all the reference are in same solution, but not if you use it as a library in other project). Having said that, changin...
c# datatable to csv
...Text("test.csv", sb.ToString());
.net >= 4.0
And as Tim pointed out, if you are on .net>=4, you can make it even shorter:
StringBuilder sb = new StringBuilder();
IEnumerable<string> columnNames = dt.Columns.Cast<DataColumn>().
Select(column =...