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Meaning of $? (dollar question mark) in shell scripts
...executed command.
For example the command true always returns a status of 0 and false always returns a status of 1:
true
echo $? # echoes 0
false
echo $? # echoes 1
From the manual: (acessible by calling man bash in your shell)
$? Expands to the exit status of the most recen...
Get the key corresponding to the minimum value within a dictionary
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answered Jul 19 '10 at 16:21
community wiki
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Int to Char in C#
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(char)myint;
for example:
Console.WriteLine("(char)122 is {0}", (char)122);
yields:
(char)122 is z
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My docker container has no internet
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110
First thing to check is run cat /etc/resolv.conf in the docker container. If it has an invalid D...
FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
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202
There is one that is in android.support.v13.app.FragmentPagerAdapter, which should do what you ...
What is the simplest and most robust way to get the user's current location on Android?
... provider is available I start location listeners and timeout timer. It's 20 seconds in my example, may not be enough for GPS so you can enlarge it.
If I get update from location listener I use the provided value. I stop listeners and timer.
If I don't get any updates and timer elapses I have to use...
How to write Unicode characters to the console?
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203
It's likely that your output encoding is set to ASCII. Try using this before sending output:
C...
Import pandas dataframe column as string not int
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Just want to reiterate this will work in pandas >= 0.9.1:
In [2]: read_csv('sample.csv', dtype={'ID': object})
Out[2]:
ID
0 00013007854817840016671868
1 00013007854817840016749251
2 00013007854817840016754630
3 00013007854817840016781876
4 00...
JavaScript: how to change form action attribute value based on selection?
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answered Dec 18 '09 at 0:54
cletuscletus
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App Inventor 2 ECharts 拓展：基于 ECharts 强大的个性化数据图表展示 · ...
...进行展示的图表拓展，基于ECharts强大的js图表库开发。v2.0 起内置：柱状图、折线图、饼图、仪表图、条形图、堆叠柱状图、面积图、堆叠面积图、环形图、玫瑰图、漏斗图、散点图、气泡图、雷达图、热力图、K线图、进度环、...