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Catching error codes in a shell pipe
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If you really don't want the second command to proceed until the first is known to be successful, then you probably need to use temporary files. The simple version of that is:
tmp=${TMPDIR:-/tmp}/mine.$$
if ./a > $tmp.1
then
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Why does C++ not allow inherited friendship?
Why is friendship not at least optionally inheritable in C++? I understand transitivity and reflexivity being forbidden for obvious reasons (I say this only to head off simple FAQ quote answers), but the lack of something along the lines of virtual friend class Foo; puzzles me. Does anyone know ...
Case-insensitive string comparison in C++ [closed]
...case-insensitive string comparison in C++ without transforming a string to all uppercase or all lowercase?
30 Answers
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How to find unused/dead code in java projects [closed]
...has been in development for some years, and it is getting very hard to manually detect code that is no longer in use. We do however try to delete as much unused code as possible.
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Git command to show which specific files are ignored by .gitignore
...kes a file to be ignored in your git repo.
On Unix, using "What expands to all files in current directory recursively?" and a bash4+:
git check-ignore **/*
(or a find -exec command)
Note: https://stackoverflow.com/users/351947/Rafi B. suggests in the comments to avoid the (risky) globstar:
git ...
Remote branch is not showing up in “git branch -r”
... specifies fetch rules. You could add something like this into it to fetch all branches from the remote:
fetch = +refs/heads/*:refs/remotes/origin/*
(Or replace origin with bitbucket.)
Please read about it here: 10.5 Git Internals - The Refspec
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Is there an equivalent of lsusb for OS X
This question seems to be all over google, but the answers all point to using System Profiler. That's nice, but with System Profiler all you get is something that looks like this:
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jQuery or javascript to find memory usage of page
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2015 Update
Back in 2012 this wasn't possible, if you wanted to support all major browsers in-use. Unfortunately, right now this is still a Chrome only feature (a non-standard extension of window.performance).
window.performance.memory
Browser support: Chrome 6+
2012 Answer
Is there a w...
How to fallback to local stylesheet (not script) if CDN fails
I am linking to the jQuery Mobile stylesheet on a CDN and would like to fall back to my local version of the stylesheet if the CDN fails. For scripts the solution is well known:
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Print All JVM Flags
...iles. Probably the best reason why there is no one document that describes all options is that some of these options are better left to those who really understand the JVM and the best way to do that is to become intimately familiar with the source code.
So, in the words (almost) of a great master,...