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How to check if a particular service is running on Ubuntu
...ed Hat Linux you can see all running services by running the following command:
service --status-all
On the list the + indicates the service is running, - indicates service is not running, ? indicates the service state cannot be determined.
...
PHP: Return all dates between two dates in an array [duplicate]
...eriod::EXCLUDE_START_DATE. In the end, it does not even return an array of strings (as asked). Great answer, but to the wrong question.
– Maxime
Jul 8 '13 at 16:00
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Decimal number regular expression, where digit after decimal is optional
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@Chandranshu and it matches an empty string, which your change would also solve.
– OGHaza
Nov 22 '13 at 14:29
2
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Convert absolute path into relative path given a current directory using Bash
...m @pini (which sadly handle only a few cases)
Reminder : '-z' test if the string is zero-length (=empty) and '-n' test if the string is not empty.
# both $1 and $2 are absolute paths beginning with /
# returns relative path to $2/$target from $1/$source
source=$1
target=$2
common_part=$source # f...
Good way of getting the user's location in Android
...specific provider (network/gps)
*/
private Location getLocationByProvider(String provider) {
Location location = null;
if (!isProviderSupported(provider)) {
return null;
}
LocationManager locationManager = (LocationManager) getApplicationContext()
.getSystemServi...
SQL SELECT speed int vs varchar
...2147483648 to +2147483647 )
character types occupy 4 bytes plus the actual strings.
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What is the difference between string primitives and String objects in JavaScript?
...ain type categories, primivites and objects.
var s = 'test';
var ss = new String('test');
The single quote/double quote patterns are identical in terms of functionality. That aside, the behaviour you are trying to name is called auto-boxing. So what actually happens is that a primitive is convert...
Why is the default value of the string type null instead of an empty string?
It's quite annoying to test all my strings for null before I can safely apply methods like ToUpper() , StartWith() etc...
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Pass a data.frame column name to a function
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Is there any way to pass the column name not as a string?
– kmm
Apr 14 '10 at 23:13
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Convert list to array in Java [duplicate]
...llection to an array: either using
a pre-sized array (like c.toArray(new String[c.size()])) or
using an empty array (like c.toArray(new String[0]). In
older Java versions using pre-sized array was recommended, as the
reflection call which is necessary to create an array of proper size
...