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How to paste yanked text into the Vim command line
...o Z are for appending to corresponding registers).
_ (acts like /dev/null (Unix) or NUL (Windows), you can write to it but it's discarded and when you read from it, it is always empty),
- (small delete register),
/ (search pattern register, updated when you look for text with /, ?, * or # for instan...
#pragma once vs include guards? [duplicate]
...n option.
(The short version of why this is unfixable is that neither the Unix nor the Windows filesystem API offer any mechanism that guarantees to tell you whether two absolute pathnames refer to the same file. If you are under the impression that inode numbers can be used for that, sorry, you'r...
How to write a large buffer into a binary file in C++, fast?
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I'd suggest trying file mapping. I used mmapin the past, in a UNIX environment, and I was impressed by the high performance I could achieve
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Is there a way to cache GitHub credentials for pushing commits?
...ing a password for a Git repository HTTPS URL is possible with a ~/.netrc (Unix) or %HOME%/_netrc (note the _) on Windows.
But: That file would store your password in plain text.
Solution: Encrypt that file with GPG (GNU Privacy Guard), and make Git decrypt it each time it needs a password (for pu...
How do malloc() and free() work?
...ee does the following:
Get a block of memory from the OS through sbrk() (Unix call).
Create a header and a footer around that block of memory with some information such as size, permissions, and where the next and previous block are.
When a call to malloc comes in, a list is referenced which point...
'and' (boolean) vs '&' (bitwise) - Why difference in behavior with lists vs numpy arrays?
...nd of information is mostly used in low-level operating system interfaces (unix permission bits, for example). Most python programs won't need to know that.
The logical operations (and, or, not), however, are used all the time.
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How line ending conversions work with git core.autocrlf between different operating systems
...F | CRLF -> LF | CRLF -> LF | as-is | as-is | as-is | as-is
Unix -LF | as-is | as-is | as-is | LF -> CRLF | as-is | as-is
Mac -CR | as-is | as-is | as-is | as-is | as-is | as-is
Mixed-CRLF+LF | as-is | as-is | as-is | as-is ...
What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
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Bash tool to get nth line from a file
...e are operations that you would expect to be heavily optimized in a modern Unix system.
To get an idea about the performance differences, these are the number that I get for a huge file (9.3G):
tail -n+N | head -1: 3.7 sec
head -N | tail -1: 4.6 sec
sed Nq;d: 18.8 sec
Results may differ, but th...
How can bcrypt have built-in salts?
... 10 does. To clear up other misinformation, PHP's crypt function uses the unix crypt library which is implemented in c.
– thomasrutter
Jul 3 '12 at 13:02
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