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...，通过一个名为“raddr2line”的工具即可。这个工具是从unix里的“addr2line”修改而来的。它会将输入的地址转换为文件名和行号。通过使用可执行文件的调试信息，它可将地址翻译为可读信息并输出到控制台中。这些信息可以和...
How to change value of process.env.PORT in node.js?
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For just one run (from the unix shell prompt):
$ PORT=1234 node app.js
More permanently:
$ export PORT=1234
$ node app.js
In Windows:
set PORT=1234
In Windows PowerShell:
$env:PORT = 1234
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In-place edits with sed on OS X
...be noted, however, that if this invocation of sed is part of a script, The Unix Way™ would (IMHO) be to use sed non-destructively, test that it exited cleanly, and only then remove the extraneous file.
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Change R default library path using .libPaths in Rprofile.site fails to work
...l variables (in bash you can edit .bash_profile and/or .bashrc). See here: unix.stackexchange.com/questions/117467/… For setting these for current session only type in console export R_LIBS_USER='directory_of_your_choice'
– Paweł Rumian
Apr 9 '15 at 10:43
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What exactly is Python multiprocessing Module's .join() Method Doing?
...y of join() is that it's the opposite of fork, which is the common term in Unix-family operating systems for creating child processes. A single process "forks" into several, then "joins" back into one.
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Does Python have a package/module management system?
...asy_install, but easy_install is likely to be installed by default on most unixes, pip is not.
– Jeffrey Harris
Mar 13 '10 at 1:30
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How to undo the effect of “set -e” which makes bash exit immediately if any command fails?
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Sadly, the Unix shell language (most of which is not specific to 'bash') is one of the least internally consistent programming languages still in wide use today. You're going to have to learn lots more of these little warts. And I'd ...
How to generate a Dockerfile from an image?
...ge from your example? /usr/lib/ruby/gems/2.2.0/gems/excon-0.45.4/lib/excon/unix_socket.rb:14:in `connect_nonblock': Connection refused - connect(2) for /var/run/docker.sock (Errno::ECONNREFUSED) (Excon::Errors::SocketError)
– long
May 18 '16 at 15:52
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Why does Java allow us to compile a class with a name different than the file name?
... The combination of Emacs (or Vim, pick your poison) and the Unix shell utilities are perhaps not as everything-at-your-fingertips as a modern IDE, and they're certainly harder to learn, but they have two overwhelming advantages compared to every IDE I've ever tried: they never crash, ...
Calling C/C++ from Python?
...int fact(int n);
%}
extern int fact(int n);
Building a Python module on Unix:
swig -python example.i
gcc -fPIC -c example.c example_wrap.c -I/usr/local/include/python2.7
gcc -shared example.o example_wrap.o -o _example.so
Usage:
>>> import example
>>> example.fact(5)
120
N...