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What are the special dollar sign shell variables?
...ent shell (not subshell).
$_ most recent parameter (or the abs path of the command to start the current shell immediately after startup).
$IFS is the (input) field separator.
$? is the most recent foreground pipeline exit status.
$! is the PID of the most recent background command.
$0 is the name of...
Working with README.md on github.com [closed]
... See The Future of Markdown - Jeff Atwood, Coding Horror and W3C Markdown Community Group.
Update 2014-09-09: CommonMark a markdown standard and spec has been released.
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How to set the title of DialogFragment?
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Toggle input disabled attribute using jQuery
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Member initialization while using delegated constructor
..., there is an assumption that the other constructor initializes the object completely, including all members (i.e. including the lines member in your example). You can't therefore initialize any of the members again.
The relevant quote from the Standard is (emphasis mine):
(§12.6.2/6) A mem-in...
Android: java.lang.SecurityException: Permission Denial: start Intent
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android:exported
Whether or not the activity can be launched by components of other applications — "true" if it can be, and "false" if not. If "false", the activity can be launched only by components of the same application or applications with the same user ID.
The default value d...
Finding the index of elements based on a condition using python list comprehension
The following Python code appears to be very long winded when coming from a Matlab background
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How to get the top 10 values in postgresql?
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Connect to a heroku database with pgadmin
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if you have Rails App you can access DB using github.com/igorkasyanchuk/rails_db
– Igor Kasyanchuk
Oct 24 '15 at 22:02
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