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CSV file written with Python has blank lines between each row
...at RFE is Informational. While \r\n may be "standard" on Windows, I'm sure Unix applications typically don't see it that way.
– Dan Breslau
Jul 28 '10 at 2:51
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Converting Long to Date in Java returns 1970
...any epochs dates have been used in various systems. Commonly used is POSIX/Unix time, where the epoch is the first moment of 1970 in UTC. But you should not assume this epoch.
What precision?Are we talking seconds, milliseconds, microseconds, or nanoseconds since the epoch?
What time zone?Usually a ...
How do I run a Node.js application as its own process?
...ar/www/myapp
[Install]
WantedBy=multi-user.target
Note if you're new to Unix: /var/www/myapp/app.js should have #!/usr/bin/env node on the very first line.
Copy your service file into the /etc/systemd/system folder.
Tell systemd about the new service with systemctl daemon-reload.
Start it with...
How to run JUnit test cases from the command line
...es to the classpath and separate that with semicolons (Windows) or colons (UNIX/Linux). It depends on your environment.
Edit: I've added current directory as an example. Depends on your environment and how you build your application (can be bin/ or build/ or even my_application.jar etc). Note Java ...
Get Folder Size from Windows Command Line
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Steve, in my eyes PowerShell is way more Unix-y than Unix in that most core commands are really orthogonal. In Unix du gives directory size but all it's doing is walking the tree and summing up. Something that can be very elegantly expressed in a pipeline like here ...
What is the correct file extension for GLSL shaders? [closed]
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@FrederikSlijkerman: No, it doesn't. MacOS X is a Unix at its core and file extensions were never used there for identifying thing. Yes, standard types get standard file extensions, but that's only a human readability thing. Maybe the Finder may rely on file extensions as he...
How to replace an entire line in a text file by line number
...ter setting capabilities you may want to have a look at this: grymoire.com/Unix/Sed.html#uh-2 It says the first character behind the s determines the delimiter. So to change your command to use for example the # it would be like this: sed -i '7s#.*#<param-value>http://localhost:8080/ASDF/serv...
What is the 
 character?
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It's the ASCII/UTF code for LF (0A) - Unix-based systems are using it as the newline character, while Windows uses the CR-LF PAIR (OD0A).
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Open file in a relative location in Python
...Edit:
As mentioned by kindall in the comments, python can convert between unix-style and windows-style paths anyway, so even simpler code will work:
with open("2091/data/txt") as f:
<do stuff>
That being said, the path module still has some useful functions.
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What is a stream?
... the box performs some transformation on the data (zipping it, or changing UNIX linefeeds to DOS ones, or whatever). Pipes are another thorough test of the metaphor: that's where you create a pair of streams such that anything you write into one can be read out of the other. Think wormholes :-)
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