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What are conventions for filenames in Go?
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What I should to do if I want to build for unix and others. E.g. I can make two files file_windows.go and file_others.go. It works fine. But for file_unix.go and file_others.go it does'n' work. I don't want to create eight files darwin freebsg linux openbsd netbsd dr...
Boost.Asio的简单使用(Timer,Thread,Io_service类) - C/C++ - 清泛网 - 专注C/C++及内核技术
...中调用 boost::asio::io_service::run() 来确保回调是适用于并发编程的.
一个基于asio的程序最好是从单线程入手,但是单线程有如下的限制,这一点在服务器上尤其明显:
当回调耗时较长时,反应迟钝.
在多核的系统上无能为力
如果...
Get last n lines of a file, similar to tail
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Assumes a unix-like system on Python 2 you can do:
import os
def tail(f, n, offset=0):
stdin,stdout = os.popen2("tail -n "+n+offset+" "+f)
stdin.close()
lines = stdout.readlines(); stdout.close()
return lines[:,-offset]
For ...
Can git automatically switch between spaces and tabs?
...a file .git/info/attributes which contains:
*.py filter=tabspace
Linux/Unix
Now run the commands:
git config --global filter.tabspace.smudge 'unexpand --tabs=4 --first-only'
git config --global filter.tabspace.clean 'expand --tabs=4 --initial'
OS X
First install coreutils with brew:
brew i...
Rails: FATAL - Peer authentication failed for user (PG::Error)
...accountpassword
3) Create the postgres account's new passwod:
Enter new UNIX password: databasesarefun
Retype new UNIX password: databasesarefun
passwd: password updated successfully
Getting this error message?:
Run `$ bin/rake db:create db:migrate` to create your database
$ rake db:create db:...
PDO MySQL: Use PDO::ATTR_EMULATE_PREPARES or not?
...hp and mysql versions.
*
* @param array $settings with keys: host, port, unix_socket, dbname, charset, user, pass. Some may be omitted or NULL.
* @return PDO
* @author Francis Avila
*/
function connect_PDO($settings)
{
$emulate_prepares_below_version = '5.1.17';
$dsndefaults = array_fi...
How to remove all debug logging calls before building the release version of an Android app?
...instructions must not span over multiple lines.
(Execute these lines in a UNIX shell at the root of your project. If using Windows, get a UNIX layer or use equivalent Windows commands)
share
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impr...
Nodejs Event Loop
...of event driven model with the help of an abstract example, in an abstract UNIX environment, in Node's context, as of today.
Program's perspective:
Script engine starts execution of the script.
Any time a CPU bound operation is encountered, it is executed inline (real machine), in its completenes...
How to implement common bash idioms in Python? [closed]
...
Any shell has several sets of features.
The Essential Linux/Unix commands. All of these are available through the subprocess library. This isn't always the best first choice for doing all external commands. Look also at shutil for some commands that are separate Linux commands, but...
When should I use a trailing slash in my URL?
...trailing slashes are misused.
Basically the URL format came from the same UNIX format of files and folders, later on, on DOS systems, and finally, adapted for the web.
A typical URL for this book on a Unix-like operating system would be a file path such as file:///home/username/RomeoAndJuliet.p...