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Sort rows in data.table in decreasing order on string key `order(-x,v)` gives error on data.table 1.
...ouldn't find the commit since it was fixed on the C level and I don't know what to search for.
– MichaelChirico
Feb 10 '16 at 3:43
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Convert xlsx to csv in Linux with command line
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The Gnumeric spreadsheet application comes with a command line utility called ssconvert that can convert between a variety of spreadsheet formats:
$ ssconvert Book1.xlsx newfile.csv
Using exporter Gnumeric_stf:stf_csv
$ cat...
Compare two folders which has many files inside contents
...ill do this, telling you both if any files have been added or deleted, and what's changed in the files that have been modified.
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FontAwesome icons not showing. Why?
...esome/4.1.0/css/font-awesome.min.css" rel="stylesheet">
Specifically, the href= part.
However, under your full html is this:
<link src="http://maxcdn.bootstrapcdn.com/font-awesome/4.1.0/css/font-awesome.min.css" rel="stylesheet">
Have you tried replacing src= with href= in your full h...
Increment a database field by 1
...DATE logins = logins + 1;
If you can't do that, then you'd have to fetch whatever that primary key is first, so I don't think you could achieve what you want in one query.
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Devise form within a different controller
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What solution should be if we have few devise models?
– yozzz
May 21 '14 at 11:02
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Check to see if python script is running
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Drop a pidfile somewhere (e.g. /tmp). Then you can check to see if the process is running by checking to see if the PID in the file exists. Don't forget to delete the file when you shut down cleanly, and check for it when you start up.
#/usr/bin/env python
impo...
“The page you are requesting cannot be served because of the extension configuration.” error message
... installed after VS or .NET framework.
Note - for Windows 8/10 users, see the other answer by JohnOpincar below. And also the comment/tip from Kevin Brydon.
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Block Declaration Syntax List
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List of Block Declaration Syntaxes
Throughout, let
return_type be the type of object/primitive/etc. you'd like to return (commonly void)
blockName be the variable name of the block you're creating
var_type be the type object/primitive/etc. you'd like to pass as an argument (leave blank for ...
Changing the default header comment license in Xcode
Whenever I create a new .cpp/.h file in Xcode a comment is added to the top of the file. For example:
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