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How do I include a pipe | in my linux find -exec command?
...ust operating on the files returned by find, especially when combined with test. For instance: find geda-gaf/ -type d -exec bash -c 'DIR={}; [[ $(find $DIR -maxdepth 1 |xargs grep -i spice |wc -l) -ge 5 ]] && echo $DIR' \; Will return all directories in the search path which contain more...
what is the right way to treat Python argparse.Namespace() as a dictionary?
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Yes, it is okay to access the __dict__ attribute. It is a well-defined, tested, and guaranteed behavior.
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Can you grab or delete between parentheses in vi/vim?
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Nearly. Testing this, it looks like the cursor needs to be on the first parenthesis, not between, and 'c' is the change command. With the cursor on the opening parenthesis, 'di(' deletes to the matching closing parenthesis, and 'yi(...
How to convert a PIL Image into a numpy array?
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Open I as an array:
>>> I = numpy.asarray(PIL.Image.open('test.jpg'))
Do some stuff to I, then, convert it back to an image:
>>> im = PIL.Image.fromarray(numpy.uint8(I))
Filter numpy images with FFT, Python
If you want to do it explicitly for some reason, there are pi...
How to assign colors to categorical variables in ggplot2 that have stable mapping?
... address this is to create a custom manual colour scale as follows:
#Some test data
dat <- data.frame(x=runif(10),y=runif(10),
grp = rep(LETTERS[1:5],each = 2),stringsAsFactors = TRUE)
#Create a custom color scale
library(RColorBrewer)
myColors <- brewer.pal(5,"Set1")
names(myColors)...
How to add spacing between UITableViewCell
...ntView of your cell. Here is a screen shot of a prototype I did in another test project when I was simulating this:
Here is some code (Note: there are lots of hard coded values for demonstration purposes)
First, I needed to set the heightForRowAtIndexPath to allow for different heights on the UI...
What is an abstract class in PHP?
... in abstract class
Example Code:
abstract class A {
public function test1() {
echo 'Hello World';
}
abstract protected function f1();
abstract public function f2();
protected function test2(){
echo 'Hello World test';
}
}
class B extends A {
public $a ...
How update the _id of one MongoDB Document?
...over the collection for ever. Snapshot doesn't do what you expect (you can test it by taking a 'snapshot' adding a document to the collection, then seeing that that new document is in the snapshot)
– Patrick
Jan 16 '15 at 10:01
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What is the best method to merge two PHP objects?
...j1, (array) $obj2);
This actually also works when objects have methods. (tested with PHP 5.3 and 5.6)
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创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...库C上新建这个物化视图却失败，说：“ORA-12014: 表 'T_MV_TEST' 不包含主键约束条件”。如果将此表的主键增加字段并ENABLE后操作，又说：“ORA-23412: 主表的主键列已更改”。
但有一个奇怪的现象：在数据库B上我们也建立过物化视...