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List of special characters for SQL LIKE clause
...E au_lname LIKE '[C-P]arsen' finds author last names ending with arsen and starting with any single character between C and P, for example Carsen, Larsen, Karsen, and so on. In range searches, the characters included in the range may vary depending on the sorting rules of the collation.
[^] Any sin...
Where are static variables stored in C and C++?
...hey are zero-initialized. zero-initialized static data goes in .BSS (Block Started by Symbol), non-zero-initialized data goes in .DATA
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What characters are allowed in an email address?
...inal specification of hostnames in RFC 952, mandated that labels could not start with a digit or with a hyphen, and must not end with a hyphen. However, a subsequent specification (RFC 1123) permitted hostname labels to start with digits. No other symbols, punctuation characters, or blank spaces are...
What modern C++ libraries should be in my toolbox? [closed]
... been out of the C++ game for about 10 years and I want to get back in and start on a commercial app. What libraries are in use these days?
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Please explain the exec() function and its family
...() exemplifies the spirit of UNIX in that it provides a very simple way to start new processes.
The fork() call makes a near duplicate of the current process, identical in almost every way (not everything is copied over, for example, resource limits in some implementations, but the idea is to create...
Delete text in between HTML tags in vim?
...
(cursor on first character to delete)
v/<[enter]d
This solution starts on the first character, then enters visual mode ("v"). It then searches for the next start bracket ("/<"), and then press enter to exit the search.
At this point, your visual selection will cover the text to delet...
What's the difference between “git reset” and “git checkout”?
...e.g., git log --pretty=format:"%d" -1.
Attached head states will start with (HEAD ->,
detached will still show (HEAD, but will not have an arrow to a branch ref.
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How to extract img src, title and alt from html using php? [duplicate]
...this page. If you have no cache system, you can tweak your own by using ob_start and loading / saving from a text file.
How does this stuff work ?
First, we use preg_ match_ all, a function that gets every string matching the pattern and ouput it in it's third parameter.
The regexps :
<img[^&...
Navigation in django
...'ve just done my first little webapp in django and I love it. I'm about to start on converting an old production PHP site into django and as part its template, there is a navigation bar.
...
find -exec cmd {} + vs | xargs
...irst version is
safe, the second is not.
Your script will not treat a file starting with "-" as an option.
So your code should look like this:
find . -exec cmd -option1 -option2 -- {} +
or
find . -print0 | xargs -0 cmd -option1 -option2 --
The first version is shorter and easier to write as ...