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How do i find out what all symbols are exported from a shared object?
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Do you have a "shared object" (usually a shared library on AIX), a UNIX shared library, or a Windows DLL? These are all different things, and your question conflates them all :-(
For an AIX shared object, use dump -Tv /path/to/foo.o.
For an ELF shared library, use readelf -Ws /path/to/libf...
Python: What OS am I running on?
What do I need to look at to see whether I'm on Windows or Unix, etc?
25 Answers
25
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C++11 std::threads vs posix threads
...Windows. And of course it is absolutely missing in commercial compilers on UNIXes (Sun Studio on Solaris, HP aCC on HP-UX, IBM vacpp on AIX). Therefore, if your target platform is Linux only - c++11 std::thread is fine; if you also need Windows or other UNIX - boost::thread is the way to go.
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How to find out the number of CPUs using python
...t; 0:
return res
except OSError:
pass
# Other UNIXes (heuristic)
try:
try:
dmesg = open('/var/run/dmesg.boot').read()
except IOError:
dmesgProcess = subprocess.Popen(['dmesg'], stdout=subprocess.PIPE)
dmesg = dmesgP...
How do I execute a command and get the output of the command within C++ using POSIX?
...g...
It seems like nobody does things the hard way any more.
(Assuming a Unix/Linux/Mac environment, or perhaps Windows with a POSIX compatibility layer...)
enum PIPE_FILE_DESCRIPTERS
{
READ_FD = 0,
WRITE_FD = 1
};
enum CONSTANTS
{
BUFFER_SIZE = 100
};
int
main()
{
int parentToCh...
How to call one shell script from another shell script?
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Remember to change format/encoding of executable files in unix if they are created in DOS and then uploaded to unix environment -> dos2unix <script name>
– Abhishek Chatterjee
Feb 5 '14 at 6:19
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大单融资后，MOOC去哪儿 - 资讯 - 清泛网 - 专注C/C++及内核技术
...网曾获2000万美元融资，学堂在线曾获1500万美元融资。有分析称，尚未找到盈利模式的MOOC之所以屡获资本青睐，更多是因为政策红利。在大额融资后，MOOC又该何去何从？
MOOC融资后的高校竞争
2013年被称为中国MOOC元年。这种大...
Purpose of #!/usr/bin/python3
... figure out what program should be started to interpret the script.
A non Unix based OS will use its own rules for figuring out how to run the script. Windows for example will use the filename extension and the # will cause the first line to be treated as a comment.
If the path to the Python execu...
How do I get the current date and time in PHP?
...'); // MySQL datetime format
echo $now->getTimestamp(); // Unix Timestamp -- Since PHP 5.3
And to specify the timezone:
$now = new DateTime(null, new DateTimeZone('America/New_York'));
$now->setTimezone(new DateTimeZone('Europe/London')); // Another way
echo $now->getTime...
Run R script from command line
...int('hello')
}
sayHello()
I will also note that if you're running on a *unix system there is the useful littler package which provides easy command line piping to R. It may be necessary to use littler to run shiny apps via a script? Further details can be found in this question.
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