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How to concatenate string variables in Bash
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codaddictcodaddict
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Where are the PostgreSQL logs on macOS?
I would like to take a look at the PostgreSQL log files to see what my app writes to them but I can't find them.
8 Answers
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What is Ruby equivalent of Python's `s= “hello, %s. Where is %s?” % (“John”,“Mary”)`
..."hello, %s. Where is %s?" % ["John", "Mary"]
Remember to use square brackets there. Ruby doesn't have tuples, just arrays, and those use square brackets.
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Heatmap in matplotlib with pcolor?
I'd like to make a heatmap like this (shown on FlowingData ):
4 Answers
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Display image as grayscale using matplotlib
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unutbuunutbu
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How to debug heap corruption errors?
...2008. On seemingly random occasions, I get a "Windows has triggered a break point..." error with a note that this might be due to a corruption in the heap. These errors won't always crash the application right away, although it is likely to crash short after.
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How to create a temporary directory/folder in Java?
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If you are using JDK 7 use the new Files.createTempDirectory class to create the temporary directory.
Path tempDirWithPrefix = Files.createTempDirectory(prefix);
Before JDK 7 this should do it:
public static File createTempDirectory()
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How can you check which options vim was compiled with?
I'd like to know which compilation options were used for my Vim binary. Is there any way to query this?
3 Answers
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How to post JSON to PHP with curl
...ng all afternoon to run the curl post command in this recess PHP framework tutorial. What I don't understand is how is PHP supposed to interpret my POST, it always comes up as an empty array.
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Mongoose query where value is not null
Looking to do the following query:
6 Answers
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