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xxx.sh: line x: [0: command not found - 更多技术 - 清泛网 - 专注C/C++及内核技术
xxx.sh: line x: [0: command not found由于if [后面没有加空格导致的。if [ xxx ] 表达式前后都要有空格。由于if [ 后面没有加空格导致的。
if [ xxx ] 表达式前后都要有空格。command not found
Discuz X 首页白板解决之道 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Discuz X 首页白板解决之道1、开启Debug，及url后面跟 &debug=yes，也是网上最多的方法，但可能往往没有效果。2、排除法，代码一段段的排查，在合适位置打印特定内容然后exit(0);查看结果，分析出现问题的 1、开启Debug，及url后面...
【解决】php7.x后报错Warning: Use of undefined constant PRE - assumed问...
【解决】php7.x后报错Warning: Use of undefined constant PRE - assumed问题解决此种问题其实也不是很难，只是报了Warning警告，我们只需要关闭PHP错误提示就行了。具体步骤如下：1、打开 php ini2、设置 error_reporting = E_ALL & ~E_DEPRECATED & 解决...
A simple explanation of Naive Bayes Classification
...derstand the process of Naive Bayes, and I was wondering if someone could explain it with a simple step by step process in English. I understand it takes comparisons by times occurred as a probability, but I have no idea how the training data is related to the actual dataset.
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Is it possible to solve the “A generic array of T is created for a varargs parameter” compiler warni
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As Joshua Bloch puts it in Effective Java: "Don't mix generics and arrays."
– Timmos
Jan 3 '14 at 9:36
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Two statements next to curly brace in an equation
...write an equation with one curly brace ( { ), and on the right-hand side next to the curly, two statements in two different lines?
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Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
...hould I test if something is valid or just try to do it and catch the exception?
8 Answers
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Installed Java 7 on Mac OS X but Terminal is still using version 6
...this way :
To easily and quickly open the Java Preferences pane in Mac OS X you can simply call spotlight with ⌘+SPACE and type System Preferences it will show up in the last row of the window.
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How to add a vertical Separator?
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This should do exactly what the author wanted:
<StackPanel Orientation="Horizontal">
<Separator Style="{StaticResource {x:Static ToolBar.SeparatorStyleKey}}" />
</StackPanel>
if you want a horizontal sepa...
Intellij IDEA. Hide .iml files
...es settings:
File | Settings | Editor | File Types for Windows and Linux
IntelliJ IDEA | Preferences | Editor | File Types for OS X
Then add *.iml;*.idea; in the text box in the bottom:
http://blogs.jetbrains.com/idea/2011/04/intellij-idea-does-not-show-some-files-know-the-hiding-place...