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PHP mkdir: Permission denied problem

...te permissions on the directory. Here's what you do in Ubuntu Make sure all files are owned by the Apache group and user. In Ubuntu it is the www-data group and user chown -R www-data:www-data /path/to/webserver/www Next enabled all members of the www-data group to read and write files chmod -R...
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How to print SQL statement in codeigniter model

... when i do print_r($query); nothing prints out at all – Technupe May 26 '11 at 16:50 1 ...
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Process all arguments except the first one (in a bash script)

...a simple script where the first argument is reserved for the filename, and all other optional arguments should be passed to other parts of the script. ...
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How do I disable “missing docstring” warnings at a file-level in Pylint?

... have a separate code for the various place where docstrings can occur, so all you can do is disable C0111. The problem is that if you disable this at module scope, then it will be disabled everywhere in the module (i.e you won't get any C line for missing function / class / method docstring. Which ...
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Transaction isolation levels relation with locks on table

...B just executes a SELECT statement to read data. C reads and updates data. All these process work on the same table T. READ UNCOMMITTED - no lock on the table. You can read data in the table while writing on it. This means A writes data (uncommitted) and B can read this uncommitted data and use it...
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Cannot install packages using node package manager in Ubuntu

... TL;DR: sudo apt-get install nodejs-legacy First of all let me clarify the situation a bit. In summer 2012 Debian maintainers decided to rename Node.js executable to prevent some kind of namespace collision with another package. It was very hard ...
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How to install a gem or update RubyGems if it fails with a permissions error

I'm trying to install a gem using gem install mygem or update RubyGems using gem update --system , and it fails with this error: ...
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Getting indices of True values in a boolean list

...ode where I'm supposed to create a switchboard. I want to return a list of all the switches that are on. Here "on" will equal True and "off" equal False . So now I just want to return a list of all the True values and their position. This is all I have but it only return the position of the fir...
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Best practices for catching and re-throwing .NET exceptions

... that bombs here } catch (Exception ex) { throw; } throw ex; is basically like throwing an exception from that point, so the stack trace would only go to where you are issuing the throw ex; statement. Mike is also correct, assuming the exception allows you to pass an exception (which is recom...
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Expression Versus Statement

...as one unit of execution, a thing that you did. The only reason it wasn't called a "line" was because sometimes it spanned multiple lines. An expression on its own couldn't do anything... you had to assign it to a variable. 1 + 2 / X is an error in FORTRAN, because it doesn't do anything. You had...