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Check if an apt-get package is installed and then install it if it's not on Linux
...ply rely on return codes here for scripting or the output/lack of output alone for scripting. You would have to scan the output of these commands, limiting their usefulness for this question.
– UpAndAdam
Apr 30 '13 at 14:39
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What is a good reason to use SQL views?
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Another use that none of the previous answers seem to have mentioned is easier deployment of table structure changes.
Say, you wish to retire a table (T_OLD) containing data for active users, and instead use a new table with similar data (nam...
An established connection was aborted by the software in your host machine
...t be two instances of Eclipse are pointing to same Android SDK...just keep one instance of Eclipse and try again...that's why you are getting Exception as "established connection was aborted by the software in your host machine"...go in details of android adb(Android Debug Bridge) you will get it......
What integer hash function are good that accepts an integer hash key?
...uniformly distributed, multiplicative hashing ensures that collisions from one value are unlikely to "disturb" items with other hash values.
– Paolo Bonzini
Jun 3 '11 at 7:28
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Parse string to DateTime in C#
I have date and time in a string formatted like that one:
8 Answers
8
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How do I delete an item or object from an array using ng-click?
...rby Never mind just read XMLilley's Answer
– jamesmstone
Mar 31 '16 at 7:52
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How to determine if a number is a prime with regex?
...if n == 3.
.?
The first part of the regex says, "any character, zero or one times". So basically, is there zero or one character-- or, per what I mentioned above, n == 0 || n == 1. If we have the match, then return the negation of that. This corresponds with the fact that zero and one are NOT pri...
Deleting all pending tasks in celery / rabbitmq
...ery 3.0+: manage.py celery purge (celeryctl is now deprecated and will be gone in 3.1).
– Henrik Heimbuerger
Apr 19 '13 at 14:26
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How do I speed up the gwt compiler?
...ecko,gecko1_8"></define-property>
or in gwt 2.x syntax, and for one browser only:
<set-property name="user.agent" value="gecko1_8"/>
This, for example, will compile your application for IE and FF only. If you know you are using only a specific browser for testing, you can use thi...
how to make twitter bootstrap submenu to open on the left side?
...I have dropdown menu in the top right corner of the page and that menu has one more submenu. However, when submenu opens - it does not fit in the window and goes too much to the right, so that user can see only first letters. How to make that submenu to open not to the right, but to the left?
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