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What are file descriptors, explained in simple terms?

...alf of shell when the program starts. FD's are allocated in the sequential order, meaning the lowest possible unallocated integer value. FD's for a particular process can be seen in /proc/$pid/fd (on Unix based systems). sh...
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How to list all methods for an object in Ruby?

...r", "original_table_name", "field_type", "authenticate", "set_default_order", "id_name?", "id_name_column", "original_locking_column", "default_order", "subclass_associations", ... # I ran the statements in the console. Note that the methods created as a result of the (many) has_man...
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Hiding a password in a python script (insecure obfuscation only)

...ett but like Youarefunny said, you would have to raise setuid on python in order to give the script root access to the password file? – pyramidface Dec 10 '15 at 22:47 add a c...
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REST API Best practices: Where to put parameters? [closed]

...mysite.com/article/?query=Obama (subset) is a filter, and so is /article/5?order=backwards (modification). Think about what it does, not just what it's called! If "view" determines output format, then it is a filter (mysite.com/article/5?view=pdf) because it returns a modification of the found res...
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AJAX in Chrome sending OPTIONS instead of GET/POST/PUT/DELETE?

...TP request by the OPTIONS method to the resource on the other domain, in order to determine whether the actual request is safe to send. Cross-site requests are preflighted like this since they may have implications to user data. In particular, a request is preflighted if: It uses m...
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CodeIgniter removing index.php from url

..._FILENAME} !-d RewriteRule .* index.php/$1 [PT,L] if you have url in this order site.com/index.php/class/method/id NB:remove index.php in config.php should be config[index_page] = "" NB: notice the difference at the last line instead of $0 use $1 ...
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Can you Run Xcode in Linux?

... Do you need to be able to run the GUI editors in order to build apps with Xcode or can it be done from the CLI? – Jose V Mar 13 '18 at 7:02 add a com...
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Managing constructors with many parameters in Java

...t/optional arguments without needing to keep track of any kind of argument order, since any order of those calls will work equally well. share | improve this answer | follow ...
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Undefined, unspecified and implementation-defined behavior

... are described in this International Standard as unspecified (for example, order of evaluation of arguments to a function). Where possible, this International Standard defines a set of allowable behaviors. These define the nondeterministic aspects of the abstract machine. Certain other operations ar...
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Is gettimeofday() guaranteed to be of microsecond resolution?

...s the CPU's execution buffer so that the timings aren't affected by out-of-order execution. execute the rdtsc (read timestamp) execution. This fetches the number of machine cycles executed since the processor was reset. This is a 64-bit value, so with current CPU speeds it will wrap around every 1...