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How to check if a process id (PID) exists
...will have a race condition.
If you want to ignore the text output of kill and do something based on the exit code, you can
if ! kill $pid > /dev/null 2>&1; then
echo "Could not send SIGTERM to process $pid" >&2
fi
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What is the equivalent of 'describe table' in SQL Server?
I have a SQL Server database and I want to know what columns and types it has. I'd prefer to do this through a query rather than using a GUI like Enterprise Manager. Is there a way to do this?
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WhatsApp API (java/python) [closed]
...nk you @rishi. the purpose of the app would require high amount of request and responses. would this be a problem? and please clarify what do you mean by user agents?
– ndomanyo
May 28 '14 at 11:57
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Get MIME type from filename extension
...ntType); (vNext only)
Never tested, but looks like you can officially expand the mime types list via the exposed Mappings property.
Use the MimeTypes NuGet package
Copy the MimeMappings file from the reference source of the .NET Framework
For .NET Framework >= 4.5:
Use the System.Web.MimeMa...
Read specific columns from a csv file with csv module?
I'm trying to parse through a csv file and extract the data from only specific columns.
11 Answers
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Inheritance and Overriding __init__ in python
I was reading 'Dive Into Python' and in the chapter on classes it gives this example:
5 Answers
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ASP.NET Identity DbContext confusion
...ay you can have the context be aware of any relations between your classes and the IdentityUser and Roles of the IdentityDbContext.
There is very little overhead in the IdentityDbContext, it is basically a regular DbContext with two DbSets. One for the users and one for the roles.
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JavaScript: Get image dimensions
I only have a URL to an image. I need to determine the height and width of this image using only JavaScript. The image cannot be visible to the user on the page. How can I get its dimensions?
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postgresql port confusion 5433 or 5432?
...at is actually running using the netstat tool (available on OS X, Windows, and Linux, with command line syntax varying across all three).
This is further complicated on Mac OS X systems by the horrible mess of different PostgreSQL packages - Apple's ancient version of PostgreSQL built in to the OS,...
SQL, Postgres OIDs, What are they and why are they useful?
I am looking at some PostgreSQL table creation and I stumbled upon this:
4 Answers
4
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