大约有 40,000 项符合查询结果（耗时：0.0471秒） [XML]
How to permanently set $PATH on Linux/Unix? [closed]
...directories like /usr/local/something/bin to PATH variable or defining JAVA_HOME. Used by PAM and SystemD.
/etc/environment.d/*.conf List of unique assignments, allows references. Perfect for adding system-wide directories like /usr/local/something/bin to PATH variable or defining JAVA_HOME. The co...
What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...al Parameters" http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_05_02 :
? Expands to the decimal exit status of the most recent pipeline (see Pipelines).
man bash "Special Parameters":
The shell treats several parameters specially. These parameters may only be refe...
PHP - Debugging Curl
...
You can enable the CURLOPT_VERBOSE option:
curl_setopt($curlhandle, CURLOPT_VERBOSE, true);
When CURLOPT_VERBOSE is set, output is written to STDERR or the file specified using CURLOPT_STDERR. The output is very informative.
You can also use tcpdu...
Optional query string parameters in ASP.NET Web API
...imit As Integer = 99)
In your WebApiConfig
config.Routes.MapHttpRoute( _
name:="books", _
routeTemplate:="api/{controller}/{action}/{id}/{pid}/{sort}/{limit}", _
defaults:=New With {.id = RouteParameter.Optional, .pid = RouteParameter.Optional, .sort = UrlParameter....
Unable to generate an explicit migration in entity framework
...the database OR you can delete the pending migration file ([201203170856167_left]) from your Migrations folder and then re-run "add-migration" to create a brand new migration based off of your edits.
share
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Add native files from NuGet package to project output directory
...all non-managed *.dll file endings to something different, for example *.dl_ to prevent NuGet from moaning about alleged assemblies being placed at a wrong place ("Problem: Assembly outside lib folder.").
Add a custom <PackageName>.targets file in the /build subdirectory with something like th...
Exif manipulation library for python [closed]
...ould do this:
from PIL import Image
from PIL.ExifTags import TAGS
def get_exif(fn):
ret = {}
i = Image.open(fn)
info = i._getexif()
for tag, value in info.items():
decoded = TAGS.get(tag, tag)
ret[decoded] = value
return ret
Disclaimer:
I actually have no idea...
Downloading a large file using curl
...
<?php
set_time_limit(0);
//This is the file where we save the information
$fp = fopen (dirname(__FILE__) . '/localfile.tmp', 'w+');
//Here is the file we are downloading, replace spaces with %20
$ch = curl_init(str_replace(" ","%20...
Traits in PHP – any real world examples/best practices? [closed]
...ia setters:
class ClassName {
protected $logger;
public function __construct(LoggerInterface $logger) {
$this->logger = $logger;
}
// or
public function setLogger(LoggerInterface $logger) {
$this->logger = $logger;
}
}
The main reason why I find that...
Multiple returns from a function
...ue is also used in some functions defined by php itself (e.g. $count in str_replace, $matches in preg_match). This might feel quite different from returning multiple values, but it is worth at least knowing about.
A third method is to use an object to hold the different values you need. This is mor...