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Eclipse returns error message “Java was started but returned exit code = 1”
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Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...线程编程的基本方法及同步机制，还介绍了进程间通信IPC（InterProcess Communication）的几种方式。并通过一定的实例介绍相关技术在实际中的运用情况，使读者能够对Linux环境下进程与线程编程在整体上有一定的把握。
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Determine if a function exists in bash
Currently I'm doing some unit tests which are executed from bash. Unit tests are initialized, executed and cleaned up in a bash script. This script usualy contains an init(), execute() and cleanup() functions. But they are not mandatory. I'd like to test if they are or are not defined.
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How to print a int64_t type in C
C99 standard has integer types with bytes size like int64_t. I am using the following code:
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How to combine multiple conditions to subset a data-frame using “OR”?
I have a data.frame in R. I want to try two different conditions on two different columns, but I want these conditions to be inclusive. Therefore, I would like to use "OR" to combine the conditions. I have used the following syntax before with lot of success when I wanted to use the "AND" conditio...
How to declare strings in C [duplicate]
Can anyone explain me what is a difference between these lines of code
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How to format a number as percentage in R?
...that used to perplex me as a newby to R was how to format a number as a percentage for printing.
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Why do Twitter Bootstrap tables always have 100% width?
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get all keys set in memcached
How can I get all the keys set in my memcached instance(s)?
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How can I do division with variables in a Linux shell?
When I run commands in my shell as below, it returns an expr: non-integer argument error. Can someone please explain this to me?
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