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Delete all but the most recent X files in bash
...
(ls -t|head -n 5;ls) is a command group. It prints the 5 most recent files twice. sort puts identical lines together. uniq -u removes duplicates, so that all but the 5 most recent files remains. xargs rm calls rm on each of them.
– Fabie...
Entity Framework with NOLOCK
...rently transactions. Specifying an explicit transaction is just a means of grouping 2 or more statements into the same transaction so that they can be considered an atomic unit of work. The SET TRANSACTION ISOLATION LEVEL... command affects a connection-level property and hence affects all SQL state...
What is the purpose of @SmallTest, @MediumTest, and @LargeTest annotations in Android?
...is annotation? What's it's purpose in Android development?
You can run a group of tests annotated with specific annotation.
From AndroidJUnitRunner documentation:
Running a specific test size i.e. annotated with SmallTest or MediumTest or LargeTest:
adb shell am instrument -w -e size [s...
JQuery - find a radio button by value
...s][value=True]")
given that you probably have more than one radio button group like this
<input name="ShipToBillingAddress" type="radio" value="True" checked="checked">
<input name="ShipToBillingAddress" type="radio" value="False">
<input name="SomethingElse" type="radio" value="T...
Git push to wrong branch
...git cherry-pick commitsha1
git cherry-pick commitsha2
If the commits are grouped together and there are no commits pushed after your dirty commits, you can even use git reset to get that wrong branch to a state just before your commits and then follow that again using git cherry-pick to get your c...
Query EC2 tags from within instance
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too bad this breaks for tags created by autoscaling groups: aws:autoscaling:groupName
– Cmag
May 19 '15 at 15:36
2
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What's the difference between a POST and a PUT HTTP REQUEST?
...notation of existing resources;
Posting a message to a bulletin board, newsgroup, mailing list,
or similar group of articles;
Providing a block of data, such as the result of submitting a
form, to a data-handling process;
Extending a database through an append operation.
HTTP 1.1 RFC locat...
How to output a comma delimited list in jinja python template?
... a check of forloop.last would suffice for a single list, but for multiple groups of things it's useful.
A more complex example on why you would use it.
{% set pipe = joiner("|") %}
{% if categories %} {{ pipe() }}
Categories: {{ categories|join(", ") }}
{% endif %}
{% if author %} {{ pipe() }...
What is the advantage of using abstract classes instead of traits?
...
If you plan to distribute it in compiled form, and you expect outside
groups to write classes inheriting from it, you might lean towards
using an abstract class. The issue is that when a trait gains or loses
a member, any classes that inherit from it must be recompiled, even if
they have ...
Are “elseif” and “else if” completely synonymous?
...
The Framework Interoperability Group (FIG) which is made up of members that include the developers of Zend ( https://github.com/php-fig/fig-standards#voting-members ) , put together a series of Standard recommendations (PSR-#).
Zend2 and Symfony2 already ...