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What is the easiest way to get current GMT time in Unix timestamp format?
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Output:
1369550494.884832
For the standard CPython implementation on most platforms this will return a UTC value.
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Replace comma with newline in sed on MacOS?
...s/,/\\\n/g'
Note this will not work on all shells, but will work on the most common ones.
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How do I use the nohup command without getting nohup.out?
...sn't create nohup.out
On Linux, running a job with nohup automatically closes its input as well. On other systems, notably BSD and macOS, that is not the case, so when running in the background, you might want to close input manually. While closing input has no effect on the creation or not of no...
How to use Git for Unity3D source control?
...up to date version checkout Github maintained Unity.gitignore file without OS specifics.
# =============== #
# Unity generated #
# =============== #
Temp/
Library/
# ===================================== #
# Visual Studio / MonoDevelop generated #
# ===================================== #
Exported...
Best way to define private methods for a class in Objective-C
...e method in Objective-C. However, starting in Objective-C 2.0 (meaning Mac OS X Leopard, iPhone OS 2.0, and later) you can create a category with an empty name (i.e. @interface MyClass ()) called Class Extension. What's unique about a class extension is that the method implementations must go in the...
What is 'Context' on Android?
...ot be able to do if it didn't have the context?
– dinosaur
Apr 22 '16 at 17:33
15
A piece of code...
How do I find where JDK is installed on my windows machine?
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If you are using Linux/Unix/Mac OS X:
Try this:
$ which java
Should output the exact location.
After that, you can set JAVA_HOME environment variable yourself.
In my computer (Mac OS X - Snow Leopard):
$ which java
/usr/bin/java
$ ls -l /usr/bin/java...
How to tell if node.js is installed or not
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Your OS is either 32-bit or 64-bit. When you install nodejs it picks the matching version.
– arikin
Apr 2 '15 at 7:50
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服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...TIME_WAIT的记录，维护这些状态给Server带来负担。当然现代操作系统都会用快速的查找算法来管理这些 TIME_WAIT，所以对于新的 TCP连接请求，判断是否hit中一个TIME_WAIT不会太费时间，但是有这么多状态要维护总是不好。
HTTP协议1...
How to add pandas data to an existing csv file?
I want to know if it is possible to use the pandas to_csv() function to add a dataframe to an existing csv file. The csv file has the same structure as the loaded data.
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