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Run cron job only if it isn't already running
... If the daemon errors out and fails, I want the cron job to periodically restart it... I'm not sure how possible this is, but I read through a couple of cron tutorials and couldn't find anything that would do what I'm looking for...
...
How do I execute a program from Python? os.system fails due to spaces in path
...g the file in Explorer, or giving the file name as an argument to the DOS "start" command: the file is opened with whatever application (if any) its extension is associated with.
filepath = 'textfile.txt'
import os
os.startfile(filepath)
Example:
import os
os.startfile('textfile.txt')
This wil...
Mongoose indexing in production code
...anshMohapatra when you define (compile) your model. I do that when I first start the app. Now the hard think is to decide to drop all indexes and recreate them, in case you schema changes.
– Moss
Jul 31 '13 at 12:15
...
Add a number to each selection in Sublime Text 2, incremented once per selection
...y
providing three numbers separated by one space:
N M P
N: the start index.
M represents the step size which will be added to the index for
each selection.
P must be > 0 and will be used to pad the index with
leading zeroes.
...
How can I know if a process is running?
... Also, you will get an InvalidOperationException if you did not invoke the Start() method or you invoked the close() method. I posted another Answer to account for these two situations.
– Aelphaeis
Jan 31 '14 at 14:52
...
Regular expression for matching latitude/longitude coordinates?
...?:\.[0-9]{1,10})?$
-? # accept negative values
^ # Start of string
[0-9]{1,3} # Match 1-3 digits (i. e. 0-999)
(?: # Try to match...
\. # a decimal point
[0-9]{1,10} # followed by one to 10 digits (i. e. 0-9999999999)
)? # ...optionally
$ ...
How to return a part of an array in Ruby?
...Array#[]
array[index] -> obj or nil
array[start, length] -> an_array or nil
array[range] -> an_array or nil
array.slice(index) -> obj or nil
array.slice(start, length) -> an_array or nil
array.slice...
Regex lookahead, lookbehind and atomic groups
...nsume any character - the matching for regex following them (if any), will start at the same cursor position.
Read regular-expression.info for more details.
Positive lookahead:
Syntax:
(?=REGEX_1)REGEX_2
Match only if REGEX_1 matches; after matching REGEX_1, the match is discarded and sea...
Drawing a connecting line between two elements [closed]
...ur_con = cur_ui_item.data('line');
connector.append(cur_con);
var start = cur_ui_item.position();
cur_con.attr('x1',start.left).attr('y1',start.top+1);
cur_con.attr('x2',start.left+1).attr('y2',start.top+1);
});
...
How do I install ASP.NET MVC 5 in Visual Studio 2012?
...l Studio 2012 and Visual Studio 2012 Express for Web.
You can download and start using these features now.
The download link is to a Web Platform Installer that will allow you to start a new MVC5 project from VS2012.
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