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What does “@” mean in Windows batch scripts
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It inherits the meaning from DOS. @:
In DOS version 3.3 and later, hides the echo of a batch command. Any output generated by the command is echoed.
Without it, you could turn off command echoing using the echo off command, but that command would be echoed first.
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How to get the root dir of the Symfony2 application?
What is the best way to get the root app directory from inside the controller? Is it possible to get it outside of the controller?
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Execute SQLite script
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You want to feed the create.sql into sqlite3 from the shell, not from inside SQLite itself:
$ sqlite3 auction.db < create.sql
SQLite's version of SQL doesn't understand < for files, your shell does.
share
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Find the max of two or more columns with pandas
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
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Indentation in Go: tabs or spaces?
...which enforces it. This is uncommon, so try to bend your head around this idea and adopt go fmt. Note that there are even automated solutions (for instance, official Go plugin for Vim supports the :Fmt command, IIRC).
– kostix
Sep 30 '13 at 13:17
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Is it good practice to make the constructor throw an exception? [duplicate]
...So instead of throwing checked exceptions just do
public SomeObject(final String param) {
if (param==null) throw new NullPointerException("please stop");
if (param.length()==0) throw new IllegalArgumentException("no really, please stop");
}
Of course there are cases where it might just be...
How to create a template function within a class? (C++)
...'s actually standard c++. You can do struct A { template<typename> void f(); }; template<> void A::f<int>() { } for example. You just can't specialize them in class scope, but you can do so well when done in namespace scope. (not to be confused with the scope that the specializatio...
Usage of sys.stdout.flush() method
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Consider the following simple Python script:
import time
import sys
for i in range(5):
print(i),
#sys.stdout.flush()
time.sleep(1)
This is designed to print one number every second for five seconds, but if you run...
git - Your branch is ahead of 'origin/master' by 1 commit
...all happens, git merely remembers that the changes you added should be considered for the following commit.
The message you're seeing (your branch is ahead by 1 commit) means that your local repository has one commit that hasn't been pushed yet.
In other words: add and commit are local operations,...
How to git bundle a complete repo
...of the .bundle file in the URLs section for clone. It gives me greater confidence to recommend its use.
– Philip Oakley
Aug 3 '12 at 13:19
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