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How to store standard error in a variable
...pipe is sent to stdout for display or to be piped into another command.
It sets up a couple of extra file descriptors to manage the redirections needed in order to do this.
#!/bin/bash
exec 3>&1 4>&2 #set up extra file descriptors
error=$( { ./useless.sh | sed 's/Output/Useless/' 2&g...
npm install from Git in a specific version
Assumed that I have written a module for Node.js which I would like to keep private. I know that I can (should) add the line:
...
data.table vs dplyr: can one do something well the other can't or does poorly?
...over these remaining aspects as well:
Grouping operations involving a subset of rows - i.e., DT[x > val, sum(y), by = z] type operations.
Benchmark other operations such as update and joins.
Also benchmark memory footprint for each operation in addition to runtime.
2. Memory usage
Operation...
Understanding generators in Python
I am reading the Python cookbook at the moment and am currently looking at generators. I'm finding it hard to get my head round.
...
How to secure an ASP.NET Web API [closed]
...umerable<string> values;
if (!request.Headers.TryGetValues("Set-Cookie", out values))
{
return new NameValueCollection();
}
var header = values.FirstOrDefault();
return this.CollectCookiesFromHeaderString(header);
}
/// <summar...
Where do I find the bashrc file on Mac?
...am following this page .. I'm installing Python onto my mac so that I can set up a Django / Eclipse development environment.
However I am not too sure how to go about executing this step:
...
Why isn't the size of an array parameter the same as within main?
Why isn't the size of an array sent as a parameter the same as within main?
13 Answers
...
How to use a switch case 'or' in PHP
... for a value, and run different pieces of code depending on which value is set.
Each possible option is given by a case in the switch statement.
Example :
switch($bar)
{
case 4:
echo "This is not the number you're looking for.\n";
$foo = 92;
}
(ii). Delimiting code blocks
T...
How to unmount a busy device
...d by multiple users daily. I already have code to recognize shared drives (from a SQL table) and mount them in a special directory where all users can access them.
...
How do you append to an already existing string?
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