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Remove all files except some from a directory
When using sudo rm -r , how can I delete all files, with the exception of the following:
19 Answers
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MySQL OPTIMIZE all tables?
... has an OPTIMIZE TABLE command which can be used to reclaim unused space in a MySQL install. Is there a way (built-in command or common stored procedure) to run this optimization for every table in the database and/or server install, or is this something you'd have to script up yourself?
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How do you assert that a certain exception is thrown in JUnit 4 tests?
...-truth, see answer https://stackoverflow.com/a/41019785/2986984
The original answer for JUnit <= 4.12 was:
@Test(expected = IndexOutOfBoundsException.class)
public void testIndexOutOfBoundsException() {
ArrayList emptyList = new ArrayList();
Object o = emptyList.get(0);
}
Though a...
how can you easily check if access is denied for a file in .NET?
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I have done this countless times in the past, and nearly every time I've done it I was wrong to even make the attempt.
File permissions (even file existence) are volatile — they can change at any time. Thanks to Murphy's Law this especially includes the ...
Flatten nested dictionaries, compressing keys
... would flatten a nested list, you just have to do the extra work for iterating the dict by key/value, creating new keys for your new dictionary and creating the dictionary at final step.
import collections
def flatten(d, parent_key='', sep='_'):
items = []
for k, v in d.items():
ne...
Checking for a dirty index or untracked files with Git
How can I check if I have any uncommitted changes in my git repository:
14 Answers
14
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IIS_IUSRS and IUSR permissions in IIS8
I've just moved away from IIS6 on Win2003 to IIS8 on Win2012 for hosting ASP.NET applications.
6 Answers
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SELECT INTO Variable in MySQL DECLARE causes syntax error?
I´d like to SELECT a single value into a variable. I´d tried to following:
11 Answers
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Remove white space below image [duplicate]
In Firefox only my video thumbnails are displaying mysterious 2-3 pixels of white space between the bottom of my image and its border (see below).
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What algorithms compute directions from point A to point B on a map?
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Speaking as someone who spent 18 months working at a mapping company, which included working on the routing algorithm... yes, Dijkstra's does work, with a couple of modifications:
Instead of doing Dijkstra's once from source to ...