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Make xargs execute the command once for each line of input
...the entire line (without the newline) to the command as a single argument, then this is the best UNIX-compatible way to do it:
... | tr '\n' '\0' | xargs -0 -n1 ...
GNU xargs may or may not have useful extensions that allow you to do away with tr, but they are not available on OS X and other UNIX...
Should you ever use protected member variables?
...re about hiding state.
If you don't want any leaking of internal state, then declaring all your member variables private is the way to go.
If you don't really care that subclasses can access internal state, then protected is good enough.
If a developer comes along and subclasses your class the...
Can't access RabbitMQ web management interface after fresh install
...ollowed the instructions to create a new user but still get "login failed" then you may need to clear the browser cache (in firefox it is "clear recent history") and make sure to clear the "active logins" too. See here for more info
– Trevor Boyd Smith
Nov 12 '...
How to delete history of last 10 commands in shell?
...o history -d 1006; done
This will generate history -d commands for 1006, then 1007 becomes 1006 and 1006 is deleted, then 1008 (became 1007) is now 1006 and gets deleted.
If I also wanted to delete the history delete command then it's a bit more complicated because you need to know the current ma...
Cython: “fatal error: numpy/arrayobject.h: No such file or directory”
...ompiled with cython. If you pass pyimport = True into pyximport.install(), then it will use cython for everything, even for example import random or import os. I don't suggest using that feature, simply because there's no compelling reason to use it, and it could create problems. It's probably used ...
How does a ArrayList's contains() method evaluate objects?
Say I create one object and add it to my ArrayList . If I then create another object with exactly the same constructor input, will the contains() method evaluate the two objects to be the same? Assume the constructor doesn't do anything funny with the input, and the variables stored in both objec...
How can I use Google's Roboto font on a website?
...ike FontSquirrel's generator (or some software) to optimize its file size. Then, a cross-browser implementation of the standard @font-face CSS property is used to enable the font(s).
This approach can provides better load performance since you have a more granular control over the characters to inc...
“Unable to find manifest signing certificate in the certificate store” - even when add new key
...
Go to your project's "Properties" within visual studio. Then go to signing tab.
Then make sure Sign the Click Once manifests is turned off.
Updated Instructions:
Within your Solution Explorer:
right click on your project
click on properties
usually on the left-hand side, se...
Problems with pip install numpy - RuntimeError: Broken toolchain: cannot link a simple C program
...ms and Conditions with Xcode. To do this, just open up xCode and accept.
Then, try installing gcc with
brew install gcc
Finally, try to install Numpy with
pip install numpy
Hope this helps.
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Styling an input type=“file” button
...t using the attribute selector.
input[type="file"] {
display: none;
}
Then all you need to do is style the custom label element. (example).
.custom-file-upload {
border: 1px solid #ccc;
display: inline-block;
padding: 6px 12px;
cursor: pointer;
}
1 - It's worth noting that if ...