I need help. I need to learn some basics of programming, and was turned
on to Ruby by a friend. So I bought a book about it, installed Ruby and
Vim, sat down and made a tiny little Ruby program that should print out
"Hello, Matz!"
But, it doesn't.
I saved it as a .rb file, double clicked it hoping to see my very first
program in any language EVER come to life, and... A command prompt-like
window opened for a split second, closed, and nothing happened.
Where oh where did I go wrong? Do I need this "Rake" program to use .rb
files? Is it a problem with Vim? Please help, I'm so confused I don't
know what to do!
I need help. I need to learn some basics of programming, and was turned
on to Ruby by a friend. So I bought a book about it, installed Ruby and
Vim, sat down and made a tiny little Ruby program that should print out
"Hello, Matz!"
But, it doesn't.
It does ;).
I saved it as a .rb file, double clicked it hoping to see my very first
program in any language EVER come to life, and... A command prompt-like
window opened for a split second, closed, and nothing happened.
Thats no error in your program - thats how the windows command prompt behaves:
it closes right after the program finishes. As just printing one line is really
quick, you only see a glimpse of it.
So, you have multiple options. Either you open the command prompt by hand (Start
-> Execute -> "cmd"), navigate to the folder where your program is and type:
ruby programname.rb
Another option is to add "gets" at the end of your program, like this:
puts "Hello, Matz!"
gets
This makes the program wait for input. It will close once you press Enter.
Where oh where did I go wrong? Do I need this "Rake" program to use .rb
files? Is it a problem with Vim? Please help, I'm so confused I don't
know what to do!
I hope I cleared the confusion. Welcome to the list!
Regards,
Florian
···
On Jun 18, 2009, at 2:38 AM, Kaleb Mccamish wrote:
I need help. I need to learn some basics of programming, and was turned
on to Ruby by a friend. So I bought a book about it, installed Ruby and
Vim, sat down and made a tiny little Ruby program that should print out
"Hello, Matz!"
But, it doesn't.
I saved it as a .rb file, double clicked it hoping to see my very first
program in any language EVER come to life, and... A command prompt-like
window opened for a split second, closed, and nothing happened.
Where oh where did I go wrong? Do I need this "Rake" program to use .rb
files? Is it a problem with Vim?
Probably. I use emacs.
Please help, I'm so confused I don't
know what to do!
Launch irb from a terminal:
[pjb@host :0.0 ~]$ irb
Pascal, Welcome to the IRB!
It's easier to learn the language when you can try out expressions
interactively. You may edit them in your editor and copy-and-paste to
the irb window, or if you use emacs, you can have the editor send the
expression you typed in the source file to the irb process. Perhaps
vim can do it too.
Please don't do that - it's just confusing. Post one thread per topic,
and keep the subject line relevant to that specific problem; that way,
you're both more likely to get answers, and other people who have the
same issues will know to read the thread.
martin
···
On Thu, Jun 18, 2009 at 7:36 AM, Kaleb Mccamish <kalebmcc@gmail.com> wrote:
I suppose since my initial problems have been rectified, I'll use this
thread for any future problems. Saves energy, and cuts down on spam!
On Thu, Jun 18, 2009 at 7:36 AM, Kaleb Mccamish <kalebmcc@gmail.com> wrote:
I suppose since my initial problems have been rectified, I'll use this
thread for any future problems. Saves energy, and cuts down on spam!
Please don't do that - it's just confusing. Post one thread per topic,
and keep the subject line relevant to that specific problem; that way,
you're both more likely to get answers, and other people who have the
same issues will know to read the thread.
I like using netbeans. http://www.netbeans.org/ It is made by Sun and
has a lot of cool built in stuff for ruby. It has a window for the
output so you can see the results easily. It is free.
I use emacs.