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Determine the data types of a data frame's columns

...types # A tibble: 32 x 11 mpg cyl disp hp drat wt qsec vs am gear carb * <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> 1 21 6 160 110 3.9 2.62 16.5 0 1 4 4 ...
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Open new Terminal Tab from command line (Mac OS X)

... Try this: osascript -e 'tell application "Terminal" to activate' -e 'tell application "System Events" to tell process "Terminal" to keystroke "t" using command down' ...
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snprintf and Visual Studio 2010

I'm unfortunate enough to be stuck using VS 2010 for a project, and noticed the following code still doesn't build using the non-standards compliant compiler: ...
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Redirect stderr and stdout in Bash

... According to wiki.bash-hackers.org/scripting/obsolete, it seems to be obsolete in the sense that it is not part of POSIX, but the bash man page makes no mention of it being removed from bash in the near future. The man page does specify a preference for '&...
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Sending a mail from a linux shell script

I want to send an email from a Linux Shell script. What is the standard command to do this and do I need to set up any special server names? ...
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How can I check if a command exists in a shell script? [duplicate]

I am writing my first shell script. In my script I would like to check if a certain command exists, and if not, install the executable. How would I check if this command exists? ...
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Application Error - The connection to the server was unsuccessful. (file:///android_asset/www/index.

...d you made some UI modifications, may be the size of images are high) Your script may have a infinite or long loop, so that it takes too much of time to load. You will be using too much of scripts (jQuery, iscroll, etc etc.. more number of plugins or scripts ) ...
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IntelliJ IDEA: Running a shell script as a Run/Debug Configuration

Is there a way by which a shell script can be invoked from IntelliJ Run/Debug configurations? 4 Answers ...
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getExtractedText on inactive InputConnection warning on android

...a null is returned. It appears to also monitor changes to such text, and alert changes. To hunt the issue down you'll have to explore any database queries you are making, perhaps around listViews or lists in a layout. If you don't have any views, for example it's happening randomly in the backgr...
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List comprehension vs map

Is there a reason to prefer using map() over list comprehension or vice versa? Is either of them generally more efficient or considered generally more pythonic than the other? ...