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While loop to test if a file exists in bash
...xists by adding:
while [ ! -f /tmp/list.txt ]
do
sleep 2 # or less like 0.2
done
ls -l /tmp/list.txt
You might also make sure that you're using a Bash (or related) shell by typing 'echo $SHELL'. I think that CSH and TCSH use a slightly different semantic for this loop.
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How is the fork/join framework better than a thread pool?
...00 to someone else." This goes on until the big task is broken down into small packets of 10 units each. These will be executed by the available workers. But if one packet is a kind of poison pill and takes considerably longer than other packets -- bad luck, the divide phase is over.
The only remai...
Deserialize json object into dynamic object using Json.net
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Json.NET allows us to do this:
dynamic d = JObject.Parse("{number:1000, str:'string', array: [1,2,3,4,5,6]}");
Console.WriteLine(d.number);
Console.WriteLine(d.str);
Console.WriteLine(d.array.Count);
Output:
1000
string
6
Documentation here: LINQ to JSON with Json.NET
See also JObj...
How to implement infinity in Java?
...sing integer math for a reason. If so, you can get a result that's functionally nearly the same as POSITIVE_INFINITY by using the MAX_VALUE field of the Integer class:
Integer myInf = Integer.MAX_VALUE;
(And for NEGATIVE_INFINITY you could use MIN_VALUE.) There will of course be some functional d...
What is the difference between using IDisposable vs a destructor in C#?
...
answered Dec 3 '08 at 23:09
Marc Gravell♦Marc Gravell
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Notifier 通知扩展：功能强大的Android通知管理工具，支持通知通道、意图、...
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版本
修改内容
1.0 (2020-09-07)
初始版本
2.0 (2021-03-08)
完全修订和扩展版本
2.1 (2021-03-16)
某些方法声明为 public，以便 KeepAlive 扩展可以调用它们（对功能...
Using Html.ActionLink to call action on different controller
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The overload of ActionLink are really clumsy. The whole point of accepting an 'object routeValues' instead of a RouteValueCollection is to reduce the amount of typing. However, you end up having to type an extra null. Non-intuitive and counter productive ......
What do < and > stand for?
...
Others have noted the correct answer, but have not clearly explained the all-important reason:
why do we need this?
What do < and > stand for?
&lt; stands for the < sign. Just remember: lt == less than
&gt; stands for the > Just remember: gt == greater than
Why can’t we...
setBackground vs setBackgroundDrawable (Android)
... It still complains about setBackgroundDrawable being deprecated. Do I really have to suppresswarnings just because Google wanted to change the method name?
– Charlie-Blake
Oct 25 '12 at 9:07
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ansible: lineinfile for several lines?
... with_items:
- { regexp: '^kernel.shmall', line: 'kernel.shmall = 2097152' }
- { regexp: '^kernel.shmmax', line: 'kernel.shmmax = 134217728' }
- { regexp: '^fs.file-max', line: 'fs.file-max = 65536' }
s...