How to create an exit message

Question

Is there a one line function call that quits the program and displays a message  I know in Perl it s as simple as   die  Message goes here     I m tired of typing this   puts  Message goes here  exit

User · Answer

I got here searching for a way to execute some code whenever the program ends.
Found this:

Kernel.at_exit { puts "sayonara" }
# do whatever
# [...]
# call #exit or #abort or just let the program end
# calling #exit! will skip the call

Called multiple times will register multiple handlers.

User · Answer

I ve never heard of such a function  but it would be trivial enough to implement     def die msg    puts msg   exit end   Then  if this is defined in some  rb file that you include in all your scripts  you are golden     just because it s not built in doesn t mean you can t do it yourself  -

User · Answer

If you want to denote an actual error in your code  you could raise a RuntimeError exception   raise RuntimeError   Message goes here    This will print a stacktrace  the type of the exception being raised and the message that you provided  Depending on your users  a stacktrace might be too scary  and the actual message might get lost in the noise  On the other hand  if you die because of an actual error  a stacktrace will give you additional information for debugging

User · Answer

The abort function does this  For example   abort  Message goes here     Note  the abort message will be written to STDERR as opposed to puts which will write to STDOUT

[ruby] How to create an exit message

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