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Why number 9 in kill -9 command in unix? [closed]
...MAX
As for the "significance" of 9... I would say there is probably none. According to The Linux Programming Interface(p 388):
Each signal is defined as a unique (small) integer, starting
sequentially from 1. These integers are defined in with
symbolic names of the form SIGxxxx . Sinc...
Where is the .NET Framework 4.5 directory?
...T 3.0, 3.5 and 3.5SP1 replaced the assemblies for 2.0. And added some new ones. The CLR version is still 4.0.30319. You only care about the reference assemblies, they are in c:\program files\reference assemblies.
share
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How to use a switch case 'or' in PHP
...ks
The major caveat of switch is that each case will run on into the next one, unless you stop it with break. If the simple case above is extended to cover case 5:
Example :
case 4:
echo "This is not the number you're looking for.\n";
$foo = 92;
break;
case 5:
echo "A copy of Rin...
File inside jar is not visible for spring
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I had similar problem when using Tomcat6.x and none of the advices I found was helping.
At the end I deleted work folder (of Tomcat) and the problem gone.
I know it is illogical but for documentation purpose...
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Ruby / Rails - Change the timezone of a Time, without changing the value
I have a record foo in the database which has :start_time and :timezone attributes.
11 Answers
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Is it good practice to use the xor operator for boolean checks? [closed]
...al to b". (What @RobertGrant said). Most humans would understand the first one easier if they know what xor is (which is pretty useful to know if you're in the field of computing...)
– Harold R. Eason
Nov 22 '13 at 20:53
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Rails and PostgreSQL: Role postgres does not exist
...issue right on when I first install the Heroku's POSTGRES.app thing. After one morning trial and error i think this one line of code solved problem. As describe earlier, this is because postgresql does not have default role the first time it is set up. And we need to set that.
sovanlandy=# CREATE R...
Use dynamic (variable) string as regex pattern in JavaScript
...se JavaScript's RegExp object.
If you also want to match/replace more than one time, then you must add the g (global match) flag. Here's an example:
var stringToGoIntoTheRegex = "abc";
var regex = new RegExp("#" + stringToGoIntoTheRegex + "#", "g");
// at this point, the line above is the same as: v...
How can I select an element with multiple classes in jQuery?
... What is the difference between this answer and the accepted one?
– Vivian River
Aug 9 '11 at 14:32
49
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Is there a better way to find out if a local git branch exists?
... I'm not sure there's much more to add to that, but there might as well be one answer that just says "That command does everything you want" :)
The only thing you might want to be careful of is that branch names can have surprising characters in them, so you may want to quote <branch-name>.
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