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Is there a way to 'pretty' print MongoDB shell output to a file?
...n features because it's an interactive environment.
When you run commands from a javascript file via mongo commands.js you won't get quite identical behavior.
There are two ways around this.
(1) fake out the shell and make it think you are in interactive mode
$ mongo dbname << EOF > out...
Given a URL to a text file, what is the simplest way to read the contents of the text file?
...you know to be enough for the data you expect but will prevent your script from been flooded:
import urllib2
data = urllib2.urlopen("http://www.google.com").read(20000) # read only 20 000 chars
data = data.split("\n") # then split it into lines
for line in data:
print line
* Second examp...
Difference between HashMap, LinkedHashMap and TreeMap
...based maps. In the context of the Java API,
Hashtable is an obsolete class from the days of Java 1.1 before the collections framework existed. It should not be used anymore, because its API is cluttered with obsolete methods that duplicate functionality, and its methods are synchronized (which can d...
How to bring back “Browser mode” in IE11?
...e version of IE11 does in fact provide the ability to switch browser modes from the Emulation tab in the dev tools:
Having said that, the advice I've given here (and elsewhere) to avoid using compatibility modes for testing is still valid: If you want to test your site for compatibility with olde...
Firebase Storage How to store and Retrieve images [closed]
...
I ended up storing the images in base64 format myself. I translate them from their base64 value when called back from firebase.
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How to activate JMX on my JVM for access with jconsole?
...kets created using the LocalRMIServerSocketFactory only accept connections from clients running on the host where the RMI remote objects have been exported.
at sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(LocalRMIServerSocketFactory.java:89)
at sun.rmi.transport. customer .T...
Specify custom Date format for colClasses argument in read.table/read.csv
...ion as part of the colClasses.
Try:
setAs("character","myDate", function(from) as.Date(from, format="%d/%m/%Y") )
tmp <- c("1, 15/08/2008", "2, 23/05/2010")
con <- textConnection(tmp)
tmp2 <- read.csv(con, colClasses=c('numeric','myDate'), header=FALSE)
str(tmp2)
Then modify if needed...
How to import multiple .csv files at once?
...iple data.csv files, each containing the same number of variables but each from different times.
Is there a way in R to import them all simultaneously rather than having to import them all individually?
...
What are paramorphisms?
...ameters get both the original subobject and the value computed recursively from it.
An example function that's nicely expressed with para is the collection of the proper suffices of a list.
suff :: [x] -> [[x]]
suff = para (\ x xs suffxs -> xs : suffxs) []
so that
suff "suffix" = ["uffix"...
How to do something to each file in a directory with a batch script
...
Easiest method:
From Command Line, use:
for %f in (*.*) do echo %f
From a Batch File (double up the % percent signs):
for %%f in (*.*) do echo %%f
From a Batch File with folder specified as 1st parameter:
for %%f in (%1\*.*) do echo %...