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Find and replace with sed in directory and sub directories
I run this command to find and replace all occurrences of 'apple' with 'orange' in all files in root of my site:
7 Answers
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Accessing a Dictionary.Keys Key through a numeric index
...t = mydict.Keys.ElementAt(mydict.Count -1);
You should not depend on the order of keys in a Dictionary. If you need ordering, you should use an OrderedDictionary, as suggested in this answer. The other answers on this page are interesting as well.
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Laravel - Route::resource vs Route::controller
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Elegant ways to support equivalence (“equality”) in Python classes
...ses, it always calls the method of the subclass operand, regardless of the order of the operands.
So here, if Number is a classic-style class:
n1 == n3 calls n1.__eq__;
n3 == n1 calls n3.__eq__;
n1 != n3 calls n1.__ne__;
n3 != n1 calls n3.__ne__.
And if Number is a new-style class:
both n1 =...
Is it secure to store passwords as environment variables (rather than as plain text) in config files
...level, I tend to think about levels for security in the following ways (in order of increasing strength) :
No security. Plain text. Anyone that knows where to look, can access the data.
Security by Obfuscation. You store the data (plaintext) someplace tricky, like an environment variable, or in...
How to escape single quotes within single quoted strings
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If you really want to use single quotes in the outermost layer, remember that you can glue both kinds of quotation. Example:
alias rxvt='urxvt -fg '"'"'#111111'"'"' -bg '"'"'#111111'"'"
# ^^^^^ ^^^^^ ^...
Using Eloquent ORM in Laravel to perform search of database using LIKE
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Interfaces — What's the point?
...zza type. Any instance whose type inherits from IPizza is guaranteed to be orderable, as it has an Order() method.
Python is not statically-typed, therefore types are kept and looked up at runtime. So you can try calling an Order() method on any object. The runtime is happy as long as the object ha...
Rename a dictionary key
... old name key; and without iterating through dict key/value?
In case of OrderedDict, do the same, while keeping that key's position.
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How to split a string literal across multiple lines in C / Objective-C?
...ocumenting the optionality of the second @?
– Heath Borders
Jun 5 '12 at 18:10
@HeathBorders: Not right here, but I've...