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Create a new cmd.exe window from within another cmd.exe prompt
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You can just type these 3 commands from command prompt:
start
start cmd
start cmd.exe
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sh: 0: getcwd() failed: No such file or directory on cited drive
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This error is usually caused by running a command from a directory that no longer exist.
Try changing your directory and re-run the command.
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In a PHP project, what patterns exist to store, access and organize helper objects? [closed]
...ou simply pass to other objects because they need it. Here's a recent post from 'uncle Bob' (Robert Martin) discussing manual DI vs using framework.
Some more thoughts on Flavius's solution. I don't want this post to be an anti-post but I think it's important to see why dependency injection is, a...
How to invoke a Linux shell command from Java
I am trying to execute some Linux commands from Java using redirection (>&) and pipes (|). How can Java invoke csh or bash commands?
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What is the difference between PS1 and PROMPT_COMMAND
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From the GNU Bash doc page: http://www.gnu.org/software/bash/manual/bashref.html
PROMPT_COMMAND
If set, the value is interpreted as a command to execute before
the printing of each primary prompt ($PS1).
I never u...
Can't use Swift classes inside Objective-C
...ou created.
Make sure your Swift classes are tagged with @objc or inherit from a class that derives (directly or indirectly) from NSObject.
Xcode won't generate the file if you have any compiler errors in your project - make sure your project builds cleanly.
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What is uintptr_t data type
...t standard) even in C++11! cplusplus.com/reference/cstdint (I got the hint from Steve Jessop answer)
– Antonio
Oct 1 '14 at 20:56
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Studies on optimal code width?
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Actually, the 80-column thing long precedes DOS. It comes from card punches, which were 80-column devices.
And to kind of answer the OP's question, one "study" has been going on for about 600 years now - the printed book. These have evolved over the centuries, with readbility forem...
Is there a library function for Root mean square error (RMSE) in python?
..._error function. The RMSE is just the square root of whatever it returns.
from sklearn.metrics import mean_squared_error
from math import sqrt
rms = sqrt(mean_squared_error(y_actual, y_predicted))
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GCM with PHP (Google Cloud Messaging)
...unction sendPushNotification($data, $ids) {
// Insert real GCM API key from the Google APIs Console
// https://code.google.com/apis/console/
$apiKey = 'abc';
// Set POST request body
$post = array(
'registration_ids' => $ids,
'...