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node.js execute system command synchronously

...2012: How to get STDOUT] var lib = ffi.Library(null, { // FILE* popen(char* cmd, char* mode); popen: ['pointer', ['string', 'string']], // void pclose(FILE* fp); pclose: ['void', [ 'pointer']], // char* fgets(char* buff, int buff, in) fgets: ['string', ['string', 'int','po...
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Allowed characters in filename [closed]

Where can I find a list of allowed characters in filenames, depending on the operating system? (e.g. on Linux, the character : is allowed in filenames, but not on Windows) ...
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How to read a file without newlines?

...works if the file ends with a newline, otherwise the last line will lose a character. This assumption is true in most cases (especially for files created by text editors, which often do add an ending newline anyway). If you want to avoid this you can add a newline at the end of file: with open(th...
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Are there disadvantages to using a generic varchar(255) for all text-based fields?

...e , town , country , phone number etc, all of which are defined as VARCHAR(255) even though none of these fields will ever come close to having 255 characters. (If you're wondering, it's this way because Ruby on Rails migrations map String fields to VARCHAR(255) by default and I never bothe...
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application/x-www-form-urlencoded or multipart/form-data?

...will fail. The key is to choose an encoding and a boundary such that your selected boundary characters cannot appear in the encoded output. One simple solution is to use base64 (do not use raw binary). In base64 3 arbitrary bytes are encoded into four 7-bit characters, where the output character se...
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How to generate string of a certain length to insert into a file to meet a file size criteria?

... You can always use the a constructor for string which takes a char and a number of times you want that character repeated: string myString = new string('*', 5000); This gives you a string of 5000 stars - tweak to your needs. ...
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Count character occurrences in a string in C++

... The third argument is a char type, i.e., single quote, not double quote... – Emerson Xu Aug 26 '16 at 2:23 2 ...
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In Python, how do I create a string of n characters in one line of code?

I need to generate a string with n characters in Python. Is there a one line answer to achieve this with the existing Python library? For instance, I need a string of 10 letters: ...
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How to read a text file reversely with iterator in C#

... as UTF-8) you will keep having to check whether you're in the middle of a character or not when you fetch data. There's nothing built into the framework, and I suspect you'd have to do separate hard coding for each variable-width encoding. EDIT: This has been somewhat tested - but that's not to s...
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Path.Combine for URLs?

...railing slash round for quite a while all for the sake of not doing string concat. – Carl Jan 12 '11 at 16:10 66 ...