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When do we need curly braces around shell variables?
...elements, as in ${array[42]}
using parameter expansion operations, as in ${filename%.*} (remove extension)
expanding positional parameters beyond 9: "$8 $9 ${10} ${11}"
Doing this everywhere, instead of just in potentially ambiguous cases, can be considered good programming practice. This is both ...
How do you stop tracking a remote branch in Git?
...
The simplest way is to edit .git/config
Here is an example file
[core]
repositoryformatversion = 0
filemode = true
bare = false
logallrefupdates = true
ignorecase = true
[remote "origin"]
url = git@example.com:repo-name
fetch =...
Can I record/play macros in Visual Studio 2012/2013/2015/2017/2019?
... when macros are handy, like having to perform the same action in multiple files.
– Duane
Jun 4 '14 at 16:22
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How do I “undo” a --single-branch clone?
...t'll look something like this:
[core]
repositoryformatversion = 0
filemode = true
bare = false
logallrefupdates = true
ignorecase = true
precomposeunicode = false
[remote "origin"]
url = https://github.com/owner/repo.git
fetch = +refs/heads/master:refs/remotes/origin...
Best documentation for Boost:asio?
...h their website which hide/delete the #include statements + a missing .zip file resource.
A relatively new and very good beginner tutorial for Boost.Asio (which also introduces how to use it effectively with bind, shared_ptr, and threads) can be found here:
http://www.gamedev.net/blog/950/entry-22...
Calling Java from Python
...ncode() and decode() and is part of package ch.ethz.ssh2.crypto in my .jar file. I get from py4j.reflection import MethodInvoker ImportError: No module named reflection
– Vishal Sahu
Jun 14 '16 at 17:55
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Starting python debugger automatically on error
...tered? I am not against having an extra import statement at the top of the file, nor a few extra lines of code.
13 Answers
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How to know if an object has an attribute in Python
...P is the only correct option. For example, if you check the existence of a file and then open it, expecting that it will definitely exist, your code is incorrect: the file may be deleted or renamed between the check and the use. This is called a TOCTOU error (Time-Of-Check-To-Time-Of-Use) and beside...
How can I determine the URL that a local Git repository was originally cloned from?
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What file is this written to? I thought the .gitconfig file would have it, but I didn't see it in mine.
– ayjay
Dec 4 '14 at 21:15
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How can I determine what font a browser is actually using to render some text?
...rial", and one ("웃") is using "Apple SD Gothic Neo":
Arial — Local file (6 glyphs)
Apple SD Gothic Neo — Local file (1 glyph)
The actual CSS defines:
font-family: Arial,"Helvetica Neue",Helvetica,sans-serif
But those fonts often don't include many special characters. As the font inf...