大约有 47,000 项符合查询结果（耗时：0.0657秒） [XML]
Delete empty lines using sed
... spaces or tabs in your "empty" line. Use POSIX classes with sed to remove all lines containing only whitespace:
sed '/^[[:space:]]*$/d'
A shorter version that uses ERE, for example with gnu sed:
sed -r '/^\s*$/d'
(Note that sed does NOT support PCRE.)
...
Using Vim's persistent undo?
....
– Matthias Braun
Feb 18 '15 at 15:11
2
Ah. My primary reason for using the -p flag is actually ...
how to generate migration to make references polymorphic
...
Dorian
17.4k66 gold badges101101 silver badges102102 bronze badges
answered Apr 4 '11 at 4:38
Michelle TilleyMichelle Tilley
...
How to create a self-signed certificate for a domain name for development?
...poses. My web application solution contains a web API etc, that I need to call from external systems, hence I am not using localhost.
...
Create subdomains on the fly with .htaccess (PHP)
...ches[1])) {
$subdomain = $matches[1];
}
I have used regex here to to allow for people hitting your site via www.subdomain.example.org or subdomain.example.org.
If you never anticipate having to deal with www. (or other subdomains) then you could simply use a substring like so:
$subdomain = s...
Does Ruby have a string.startswith(“abc”) built in method?
...
Community♦
111 silver badge
answered Nov 9 '10 at 4:48
Jörg W MittagJörg W Mittag
325k6...
How to add reference to a method parameter in javadoc?
...
answered Jan 13 '17 at 11:34
Eurig JonesEurig Jones
7,06066 gold badges4646 silver badges7272 bronze badges
...
What is Objective C++? [closed]
...eatures to C++ classes. For example, you cannot use Objective-C syntax to call a C++ object, you cannot add constructors or destructors to an Objective-C object, and you cannot use the keywords this and self interchangeably. The class hierarchies are separate; a C++ class cannot inherit from an Obje...
log4net argument to LogManager.GetLogger
...
Warren Stevens
9171010 silver badges1111 bronze badges
answered Mar 25 '09 at 2:54
Steven LyonsSteven Lyons
7,7341...
Colors in JavaScript console
...est: background: #444; color: #bada55; padding: 2px; border-radius:2px its all about the border-radius
– Nick Sotiros
Apr 30 '14 at 7:08
...