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How to open a file for both reading and writing?
... @JossefHarush Note that the documentation for a states 'on some Unix systems, means that all writes append to the end of the file regardless of the current seek position'. In this case the f.seek(0) won't work as expected. I just fell foul of this on Linux.
– Graeme
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GCC -fPIC option
...resses in the code are relative to the current position. Shared objects in Unix-like systems use position-independent code by default. This is less efficient than relocation if program run for a long time, especially in 32-bit mode.
The name "position-independent code" actually implies following:...
How do you run a command for each line of a file?
...ample, right now I'm using the following to change a couple of files whose Unix paths I wrote to a file:
9 Answers
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How do I use CMake?
... CMakeSetup and hit generate), you should be able to find the Makefile (if unix) or project files somewhere in the project tree. The location can be specified in the CMakeList. Here's a short presentation I found on the CMake wiki you might find helpful: elpauer.org/stuff/learning_cmake.pdf
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How do you determine the size of a file in C?
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This is Linux/Unix specific--probably worth pointing that out since the question didn't specify an OS.
– Drew Hall
Aug 2 '10 at 21:54
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Run class in Jar file
...not within the directory where myJar.jar is located, then you can do:
On Unix or Linux platforms:
java -cp /location_of_jar/myjar.jar com.mypackage.myClass
On Windows:
java -cp c:\location_of_jar\myjar.jar com.mypackage.myClass
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What character to use to put an item at the end of an alphabetic list?
...s for Win7 File Explorer, I'd be curious to hear which do or don't work in Unix /Linux /Apple-i OS. I think probably the thanks in parenthesis should be to the authors rather than the editors.
– Jason K.
Oct 16 '15 at 23:20
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How do SO_REUSEADDR and SO_REUSEPORT differ?
... way as in BSD.
macOS (MacOS X)
At its core, macOS is simply a BSD-style UNIX named "Darwin", based on a rather late fork of the BSD code (BSD 4.3), which was then later on even re-synchronized with the (at that time current) FreeBSD 5 code base for the Mac OS 10.3 release, so that Apple could gai...
What happens to an open file handle on Linux if the pointed file gets moved or deleted
... the file, or put something else in its place, it simply remains open.
In Unix there is no delete, only unlink(), which makes sense as it doesn't necessarily delete the file - just removes the link from the directory.
If on the other hand the underlying device disappears (e.g. USB unplug) then t...
How do I get the current time zone of MySQL?
...mportant in terms of functions that get the time right now, such as now(), unix_timestamp(), etc.; it doesn't tell you anything about what timezone the dates in the database data are using. You might choose to assume they were written using the server's timezone, but that assumption may well be flaw...