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Replace one substring for another string in shell script
...ix shells implement it. For the relevant POSIX documentation, see The Open Group Technical Standard Base Specifications, Issue 7, the Shell & Utilities volume, §2.6.2 "Parameter Expansion".
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What causes a TCP/IP reset (RST) flag to be sent?
...ssigned the same static IP to two unrelated servers belonging to different groups, but sitting on the same network. The end results were intermittently dropped vnc connections, browser that had to be refreshed several times to fetch the web page, and other strange things.
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How to match “anything up until this sequence of characters” in a regular expression?
...have (?={contents}), a zero width
assertion, a look around. This grouped construction matches its
contents, but does not count as characters matched (zero width). It
only returns if it is a match or not (assertion).
Thus, in other terms the regex /.+?(?=abc)/ means:
Match any char...
How to force Chrome browser to reload .css file while debugging in Visual Studio?
...SS source maps" and "Auto-reload generated CSS",which are listed in source group, to make this cache issue go away.
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MySQL Server has gone away when importing large sql file
...hem in mysql/data directory or in any of the other paths, under the proper group of options such as [client], [myslqd], etc. For example:
[mysqld]
wait_timeout = 600
max_allowed_packet = 64M
Then restart the server. To get their values, type in the mysql client:
> select...
How to make an introduction page with Doxygen
...out how to draw a circle.
* Following sections describe circle:
* - \ref groupCircleDefinition "Definition of Circle"
* - \ref groupCircleClass "Circle Class"
*/
Creating groups as following also help for designing pages:
/** \defgroup groupCircleDefinition Circle Definition
* A circle is a...
How do I set the time zone of MySQL?
... I set +00:00, but I get this error: error: Found option without preceding group in config file: /etc/my.cnf
– János
May 9 '14 at 17:19
5
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MySQL: Fastest way to count number of rows
...y, but there is a case, where COUNT(*) doesn't really fit - when you start grouping results, you can run into problem, where COUNT doesn't really count all rows.
The solution is SQL_CALC_FOUND_ROWS. This is usually used when you are selecting rows but still need to know the total row count (for exa...
In which order do CSS stylesheets override?
...yle in the order (declaration order based on file load order) for the same group/level.
Here is the css and html code;
<style>
h2{
color:darkblue;
}
#important{
color:darkgreen;
}
.headline {
color:red;
}
article {
color:black;
...
There is no ViewData item of type 'IEnumerable' that has the key 'xxx'
...turn View();
}
==> In View file (Create.cshtml):
<div class="form-group">
@Html.LabelFor(model => model.Number1, htmlAttributes: new { @class =
"control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Number1, new ...