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Are there any standard exit status codes in Linux?

...ld died with 11" */ } How are you determining the exit status? Traditionally, the shell only stores an 8-bit return code, but sets the high bit if the process was abnormally terminated. $ sh -c 'exit 42'; echo $? 42 $ sh -c 'kill -SEGV $$'; echo $? Segmentation fault 139 $ expr 139 - 128 11 I...
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Get the Query Executed in Laravel 3/4

... Laravel 4+ In Laravel 4 and later, you have to call DB::getQueryLog() to get all ran queries. $queries = DB::getQueryLog(); $last_query = end($queries); Or you can download a profiler package. I'd recommend barryvdh/laravel-debugbar, which is pretty neat. You can read f...
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How can I join elements of an array in Bash?

... +1. What about printf -v bar ",%s" "${foo[@]}". It is one fork less (actually clone). It is even forking reading a file: printf -v bar ",%s" $(<infile). – TrueY Jun 8 '13 at 22:55 ...
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How do I check if a string is unicode or ascii?

... In Python 3, all strings are sequences of Unicode characters. There is a bytes type that holds raw bytes. In Python 2, a string may be of type str or of type unicode. You can tell which using code something like this: def whatisthis(s):...
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Using the HTML5 “required” attribute for a group of checkboxes?

... checked. Following is your html code (make sure that you add required for all the elements in the group.) <input type="checkbox" name="option[]" id="option-1" value="option1" required/> Option 1 <input type="checkbox" name="option[]" id="option-2" value="option2" required/> Option 2 &l...
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Linux: copy and create destination dir if it does not exist

... oops, right. But then, test may be a bash builtin (especially if written as [[ -d "$d" ]]) and mkdir can not ;-) – Michael Krelin - hacker Oct 7 '09 at 17:00 1 ...
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Alphabet range in Python

...gt;>> string.ascii_lowercase 'abcdefghijklmnopqrstuvwxyz' If you really need a list: >>> list(string.ascii_lowercase) ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'] And to do it with range >&g...
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Unable to verify leaf signature

... Note: the following is dangerous, and will allow API content to be intercepted and modified between the client and the server. This also worked process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = '0'; ...
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What really happens in a try { return x; } finally { x = null; } statement?

...L level you can't return from inside an exception-handled block. It essentially stores it in a variable and returns afterwards i.e. similar to: int tmp; try { tmp = ... } finally { ... } return tmp; for example (using reflector): static int Test() { try { return SomeNumber(); ...
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Creating your own header file in C

... I was wondering if you could elaborate on how to compile with all required files and not have to include foo.c into gcc program argument. What is this technique called or what program can accomplish this outside of IDE - Make comes to my mind – nf071590 ...