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bash: shortest way to get n-th column of output
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You can go one step further and define D to be:
alias -g D="|xargs rm"
Now you can type:
cat file X1 D
to delete all files mentioned in the first column of file "file".
If you know the bash, the zsh is not much of a change except for some new features.
HTH Chris
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How to “log in” to a website using Python's Requests module?
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I know you've found another solution, but for those like me who find this question, looking for the same thing, it can be achieved with requests as follows:
Firstly, as Marcus did, check the source of the login form to get thre...
Why does NULL = NULL evaluate to false in SQL server
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Think of the null as "unknown" in that case (or "does not exist"). In either of those cases, you can't say that they are equal, because you don't know the value of either of them. So, null=null evaluates to not true (false or null, depending on you...
Could someone explain the pros of deleting (or keeping) unused code?
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which inadvertently involve the 'dormant' code and can introduce
bugs. I know it's happened on projects I've worked on.
The maintenance of any code is an administrative burden. By preserving
old redundant code that burden is increased. For example, merging changes in the main branch becomes harder ...
Constructors vs Factory Methods [closed]
...ibility to one of several helper subclasses, and you want to localize the knowledge of which helper subclass is the delegate
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How to find event listeners on a DOM node when debugging or from the JavaScript code?
...erts "function() { alert('clicked!') }"
})
1.7+ (very nice)
Made using knowledge from this comment.
events = $._data(this, 'events');
for (type in events) {
events[type].forEach(function (event) {
console.log(event['handler']);
});
}
When clicking the resulting output in the consol...
The Guava library: What are its most useful and/or hidden features? [closed]
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Note that we now have StandardCharsets in Java 7+. I wonder how many other of Guava's features have found their way into Java.
– DavidS
Mar 22 '16 at 23:32
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What is std::move(), and when should it be used?
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template <class T>
swap(T& a, T& b) {
T tmp(a); // we now have two copies of a
a = b; // we now have two copies of b (+ discarded a copy of a)
b = tmp; // we now have two copies of tmp (+ discarded a copy of b)
}
using move allows you to swap the resources inste...
Gulps gulp.watch not triggered for new or deleted files?
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Edit: Apparently gulp.watch does work with new or deleted files now. It did not when the question was asked.
The rest of my answer still stands: gulp-watch is usually a better solution because it lets you perform specific actions only on the files that have been modified, while gulp.wat...
How do I focus on one spec in jasmine.js?
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//...
})
it('function 2', function() {
//...
}
})
Now you can run just the whole spec by this url http://localhost:8888?spec=MySpec and a the first test with http://localhost:8888?spec=MySpec+function+1
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