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Test whether a glob has any matches in bash
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Bash specific solution:
compgen -G "<glob-pattern>"
Escape the pattern or it'll get pre-expanded into matches.
Exit status is:
1 for no-match,
0 for 'one or more matches'
stdout is a list of files matching the glob.
I think this is t...
Why don't self-closing script elements work?
...properly formed XML with an XML mimetype like application/xhtml+xml in the HTTP Content-Type header (and not as text/html).
However, sending an XML mimetype will cause your pages not to be parsed by IE7, which only likes text/html.
From w3:
In summary, 'application/xhtml+xml'
SHOULD be used ...
When to use Spring Integration vs. Camel?
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4.) The effect of the soon-to-be-released Spring Integration 4.0 Java DSL https://github.com/spring-projects/spring-integration-extensions/wiki/Spring-Integration-Java-DSL-Reference
For your consideration,
/Pieter (disclaimer I work at Pivotal)
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Django admin: how to sort by one of the custom list_display fields that has no database field
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How to select html nodes by ID with jquery when the id contains a dot?
...t of the jquery documentation - section selectors which you can find here:
http://api.jquery.com/category/selectors/
Your question is answered right at the beginning of the documentation:
If you wish to use any of the meta-characters ( such as
!"#$%&'()*+,./:;?@[\]^`{|}~ )
as a literal par...
How to extract the first two characters of a string in shell scripting?
...ethod, if you're using the bash shell (and you appear to be, based on your comments), is to use the sub-string variant of parameter expansion:
pax> long="USCAGol.blah.blah.blah"
pax> short="${long:0:2}" ; echo "${short}"
US
This will set short to be the first two characters of long. If long...
Why is there “data” and “newtype” in Haskell? [duplicate]
...can be evaluated as long as you don't try to peek inside.
Couldn't the compiler handle this for itself.
No, not really—this is a case where as the programmer you get to decide whether the constructor is strict or lazy. To understand when and how to make constructors strict or lazy, you have...
Match linebreaks - \n or \r\n?
...s to Unix style (\n).
Also, NEL (\u0085) is something different entirely: https://en.wikipedia.org/wiki/Newline#Unicode
(\r?\n) will cover Unix and Windows. You'll need something more complex, like (\r\n|\r|\n), if you want to match old Mac too.
...
How do you install an APK file in the Android emulator?
...he 'android-sdk\tools' or 'platform-tools' folder.
Then type the following command.
adb install [.apk path]
Example:
adb install C:\Users\Name\MyProject\build\Jorgesys.apk
Linux:
Copy the apk file to platform-tools in android-sdk linux folder.
Open Terminal and navigate to platform-to...
Django Admin - Disable the 'Add' action for a specific model
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