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Shell command to sum integers, one per line?
...ng anything exceeding 2^31 (2147483647). See comments for more background. One suggestion is to use printf rather than print:
awk '{s+=$1} END {printf "%.0f", s}' mydatafile
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Reference — What does this symbol mean in PHP?
...y now and then about syntax in PHP. This is also a Community Wiki, so everyone is invited to participate in maintaining this list.
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Single huge .css file vs. multiple smaller specific .css files? [closed]
... the nicest development environment, with everything neatly split into components.
Sass and LESS have the added advantage of variables, nesting and other ways to make CSS easier to write and maintain. Highly, highly recommended. I personally use Sass (SCSS syntax) now, but used LESS previously. Bot...
What are the differences between a clustered and a non-clustered index?
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Clustered Index
Only one per table
Faster to read than non clustered as data is physically stored in index order
Non Clustered Index
Can be used many times per table
Quicker for insert and update operations than a clustered index
Both types...
Why is semicolon allowed in this python snippet?
...ython.org/reference/compound_stmts.html
Compound statements consist of one or more ‘clauses.’ A clause
consists of a header and a ‘suite.’ The clause headers of a particular
compound statement are all at the same indentation level. Each clause
header begins with a uniquely identify...
One DbContext per web request… why?
...icles explaining how to set up Entity Framework's DbContext so that only one is created and used per HTTP web request using various DI frameworks.
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How do I concatenate multiple C++ strings on one line?
...yInt << niceToSeeYouString; std::string s = ss.str(); is pretty much one-line
– Kotauskas
Aug 7 '18 at 13:41
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What is the syntax to insert one list into another list in python?
...) is in place, x+y is returning new list. And x += y, which was not mentioned here, is similar to the extend.
– wim
Jul 22 '18 at 16:18
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What is a semaphore?
...ber of people that are allowed in the club at once. If the club is full no one is allowed to enter, but as soon as one person leaves another person might enter.
It's simply a way to limit the number of consumers for a specific resource. For example, to limit the number of simultaneous calls to a da...
Git add and commit in one command
...s ('), as otherwise it will fail for shell expansion on Linux. On Windows, one should use double-quotes (") instead (pointed out in the comments, did not verify).
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