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How to cat a file containing code?
... backticks will be evaluated, etc, like you discovered.
If you need to expand some, but not all, values, you need to individually escape the ones you want to prevent.
cat <<EOF >>brightup.sh
#!/bin/sh
# Created on $(date # : <<-- this will be evaluated before cat;)
echo "\$HOME w...
When should I really use noexcept?
...r every function declaration would greatly reduce programmer productivity (and frankly, would be a pain).
Well, then use it when it's obvious that the function will never throw.
When can I realistically expect to observe a performance improvement after using noexcept? [...] Personally, I care ...
Send POST request using NSURLSession
...hod:@"POST"];
NSDictionary *mapData = [[NSDictionary alloc] initWithObjectsAndKeys: @"TEST IOS", @"name",
@"IOS TYPE", @"typemap",
nil];
NSData *postData = [NSJSONSerialization dataWithJSONObject:mapData options:0 error:&error];
[request setHTTPBody:post...
Origin null is not allowed by Access-Control-Allow-Origin
...oying to the web, rather than use local files, install a simple web server and test via http:// URLs instead. That gives you a much more accurate security picture.
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What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]
I have used Relational DB's a lot and decided to venture out on other types available.
7 Answers
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Use of alloc init instead of new
Learning Objective-C and reading sample code, I notice that objects are usually created using this method:
8 Answers
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What is the smallest possible valid PDF?
...oy. Acrobat opens it, but it complains somewhat. There is one page in it and it is 3/72" square, the minimum allowed by the spec.
However, Acrobat X doesn't even bother with the cross reference table anymore, so we can take that out:
%PDF-1.0
1 0 obj<</Type/Catalog/Pages 2 0 R>>endo...
How do I select the parent form based on which submit button is clicked?
...one hidden variable that's different). A user will only fill in one form, and I'd like to validate/etc all the forms with only one JS script.
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Android phone orientation overview including compass
I've been trying to get my head around the Android orientation sensors for a while.
I thought I understood it. Then I realised I didn't. Now I think (hope) I have a better feeling for it again but I am still not 100%. I will try and explain my patchy understanding of it and hopefully people will be ...
When should you use 'friend' in C++?
I have been reading through the C++ FAQ and was curious about the friend declaration. I personally have never used it, however I am interested in exploring the language.
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