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Android Writing Logs to text File

...ut then this method creates file but contains nothing. Basically I want to read previous contents of the file and then append my data with the existing content. ...
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How to copy from CSV file to PostgreSQL table with headers in CSV file?

... @Daniel I understood the user's table already existed and had all the columns they needed and that they wanted to simply ADD data. – G. Cito Jul 28 '14 at 16:16 ...
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Where are my postgres *.conf files?

... of locate. Imagine these steps: Postgres version x is installed, updatedb reads the location of all files, postgres gets upgarded to version x+1. Now the cached data of locate is too old .... This is not reliable. – guettli May 2 '18 at 10:59 ...
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Dealing with commas in a CSV file

...aid, you need to escape values that include quotes. Here’s a little CSV reader in C♯ that supports quoted values, including embedded quotes and carriage returns. By the way, this is unit-tested code. I’m posting it now because this question seems to come up a lot and others may not want an ...
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Removing trailing newline character from fgets() input

... Any C runtime library that is thread aware (which is to say, most any that target a multi-threaded platform), strtok() will be thread safe (it will use thread local storage for the 'inter-call' state). That said, it's still generally better to use the non-s...
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In what order do static/instance initializer blocks in Java run?

...n a class, such blocks are run in the order they appear in the code. I've read that it's the same across classes, but some sample code I wrote disagrees with that. I used this code: ...
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How to modify a global variable within a function in bash?

...4 20171129-132414 20171129-132414 20171129-132414 20171129-132414 This already looks very good. (But there still is the local -n which does not work in oder common bash 3.x) Avoid changing d() The last solution has some big flaws: d() needs to be altered It needs to use some internal details ...
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How can I convert an RGB image into grayscale in Python?

I'm trying to use matplotlib to read in an RGB image and convert it to grayscale. 12 Answers ...
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C pointer to array/array of pointers disambiguation

... I should have re-read what I wrote. I meant 4 for each pointer. Thanks for the help! – George May 13 '09 at 18:59 4 ...
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Why are Subjects not recommended in .NET Reactive Extensions?

..., how do we publish it? I would imagine that you would want a dedicated thread for polling. You wouldn't want some other coder hammering the ThreadPool/TaskPool and leaving you in a ThreadPool starvation situation. Alternatively you don't want the hassle of context switching (I guess). So assume we...