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Grepping a huge file (80GB) any way to speed it up?
...
Here are a few options:
1) Prefix your grep command with LC_ALL=C to use the C locale instead of UTF-8.
2) Use fgrep because you're searching for a fixed string, not a regular expression.
3) Remove the -i option, if you don't need it.
So your command becomes:
LC_ALL=C ...
Set Colorbar Range in matplotlib
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Using vmin and vmax forces the range for the colors. Here's an example:
import matplotlib as m
import matplotlib.pyplot as plt
import numpy as np
cdict = {
'red' : ( (0.0, 0.25, .25), (0.02, .59, .59), (1., 1., 1.)),
'green':...
java: Class.isInstance vs Class.isAssignableFrom
Let clazz be some Class and obj be some Object .
4 Answers
4
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How do I break out of a loop in Perl?
... edited Jan 5 '18 at 17:41
Alexander Roskamp
2766 bronze badges
answered Nov 19 '08 at 20:23
Zain RizviZain R...
What is a 'semantic predicate' in ANTLR?
...ng of at least
// one number, optionally followed by zero or more comma's and numbers
parse
: number (',' number)* EOF
;
// matches a number that is between 1 and 3 digits long
number
: Digit Digit Digit
| Digit Digit
| Digit
;
// matches a single digit
Digit
: '0'..'9'
;
//...
Rails: How to get the model class name based on the controller class name?
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If your controller and model are in the same namespace, then what you want is
controller_path.classify
controller_path gives you the namespace; controller_name doesn't.
For example, if your controller is
Admin::RolesController
then:
con...
Selecting pandas column by location
I'm simply trying to access named pandas columns by an integer.
5 Answers
5
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How can you debug a CORS request with cURL?
...e --verbose flag prints out the entire response so you can see the request and response headers.
The url I'm using above is a sample request to a Google API that supports CORS, but you can substitute in whatever url you are testing.
The response should include the Access-Control-Allow-Origin heade...
fatal: Not a valid object name: 'master'
...When I git init a folder it doesn't create a master branch
This is true, and expected behaviour. Git will not create a master branch until you commit something.
When I do git --bare init it creates the files.
A non-bare git init will also create the same files, in a hidden .git directory in ...
Java, Classpath, Classloading => Multiple Versions of the same jar/project
...reference to the class you are trying to load, it delegates to its parent, and so on, until you get to the bootstrap class loader. If none of them find a reference to the class you are trying to load you get a ClassNotFoundException.
If you have two classes with the same binary name, searchable by t...