# Beginner question pt.2 **URL:** \ **Category:** Ruby\ **Created:** [May 19, 2009, 5:36am UTC](https://www.ruby-forum.com/t/beginner-question-pt-2/168281 "2009-05-19T05:36:06Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![calvin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/f475e1/32.png) [@calvin](https://www.ruby-forum.com/u/calvin)\ **Post date:** [May 19, 2009, 5:36am UTC](https://www.ruby-forum.com/t/beginner-question-pt-2/168281/1 "2009-05-19T05:36:06Z")
When I type this into the terminal it works… but I am wondering if I am going about things the right way: $ /opt/local/bin/ruby1.9 -v $ cd $ cd Desktop $ cd programs $ ruby1.9 calc.rb then the math equation answer from calc.rb shows up in the terminal. Am I correct in thinking that ruby 1.9.1 is the ruby that is working and not ruby 1.8.6? Thank you for your time, Calvin Stephens ---
**Author:** ![calvin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/f475e1/32.png) [@calvin](https://www.ruby-forum.com/u/calvin)\ **Post date:** [May 19, 2009, 8:22am UTC](https://www.ruby-forum.com/t/beginner-question-pt-2/168281/2 "2009-05-19T08:22:21Z")
On 19.05.2009 05:33, Calvin wrote: > $ ruby1.9 calc.rb > > then the math equation answer from calc.rb shows up in the terminal. > Am I correct in thinking that ruby 1.9.1 is the ruby that is working > and not ruby 1.8.6? It’s likely but program names can be changed arbitrarily. If you want to be sure you can easily find out by entering ruby1.9 -v Kind regards robert ---
**Author:** ![calvin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/f475e1/32.png) [@calvin](https://www.ruby-forum.com/u/calvin)\ **Post date:** [May 19, 2009, 2:40pm UTC](https://www.ruby-forum.com/t/beginner-question-pt-2/168281/3 "2009-05-19T14:40:44Z")
On May 18, 11:15 pm, Robert K. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > and not ruby 1.8.6? > > – > > remember.guy do |as, often| as.you\_can - without endhttp://blog.rubybestpractices.com/- Hide quoted text - > > - Show quoted text - Thanks Robert! When I type in Ruby1.9 -v i get: ruby 1.9.1p129 with some other text. ---
**Author:** ![calvin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/f475e1/32.png) [@calvin](https://www.ruby-forum.com/u/calvin)\ **Post date:** [May 19, 2009, 3:20pm UTC](https://www.ruby-forum.com/t/beginner-question-pt-2/168281/4 "2009-05-19T15:20:36Z")
On May 19, 5:39 am, Calvin [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > then the math equation answer from calc.rb shows up in the terminal. > > > robert > > - Show quoted text - > I am also wondering if I could just type this into my terminal to get > ruby1.9 to run a ruby file: $ cd $ cd Desktop $ cd programs $ ruby1.9 calc.rb Is this correct or incorrect? Thanks for your time, Calvin ---
**Author:** ![calvin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/f475e1/32.png) [@calvin](https://www.ruby-forum.com/u/calvin)\ **Post date:** [May 19, 2009, 3:37pm UTC](https://www.ruby-forum.com/t/beginner-question-pt-2/168281/5 "2009-05-19T15:37:40Z")
On Tue, May 19, 2009 at 6:50 PM, Calvin [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > I am also wondering if I could just type this into my terminal to get > ruby1.9 to run a ruby file: > > $ cd > $ cd Desktop > $ cd programs > $ ruby1.9 calc.rb > > Is this correct or incorrect? Yes, that’s correct, as long as ruby1.9 is in your path. Also you can say cd ~/Desktop/programs rather than three separate cds. And don’t miss tab completion, if you’re using bash. martin ---
**Author:** ![calvin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/f475e1/32.png) [@calvin](https://www.ruby-forum.com/u/calvin)\ **Post date:** [May 19, 2009, 6:16pm UTC](https://www.ruby-forum.com/t/beginner-question-pt-2/168281/6 "2009-05-19T18:16:51Z")
Calvin wrote: > On May 19, 6:36�am, Martin DeMello [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > Yes, that’s correct, as long as ruby1.9 is in your path. > > > > Also you can say cd ~/Desktop/programs rather than three separate cds. > > And don’t miss tab completion, if you’re using bash. > > > > martin > > Hi Martin, > > I am using bash… what is “tab completion” and how do I do it? Start typing enough of the directory name, and by pressing tab bash will finish it for you – if what you have is enough to identify it uniquely. For example, if you are in /home/me and you want to get to scripts/ruby/tests, try “cd scr” don’t press return, press tab and scr will expand to scripts, then “/ru” and do the same thing, then “/te” tab and you’ll have cd scripts/ruby/tests now you can hit return, and all you actually typed was cd scr[TAB]/ru[TAB]/te[TAB] Hopefully that is clear enough…a lot of CLI (and GUI) apps use tab completion (eg, google). ---
**Author:** ![calvin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/f475e1/32.png) [@calvin](https://www.ruby-forum.com/u/calvin)\ **Post date:** [May 19, 2009, 5:56pm UTC](https://www.ruby-forum.com/t/beginner-question-pt-2/168281/7 "2009-05-19T17:56:05Z")
On May 19, 6:36 am, Martin DeMello [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Yes, that’s correct, as long as ruby1.9 is in your path. > > Also you can say cd ~/Desktop/programs rather than three separate cds. > And don’t miss tab completion, if you’re using bash. > > martin Hi Martin, I am using bash… what is “tab completion” and how do I do it? ---
**Author:** ![calvin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/f475e1/32.png) [@calvin](https://www.ruby-forum.com/u/calvin)\ **Post date:** [May 19, 2009, 10:29pm UTC](https://www.ruby-forum.com/t/beginner-question-pt-2/168281/8 "2009-05-19T22:29:56Z")
On May 19, 9:16 am, Mk 27 [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > Hi Martin, > > cd scripts/ruby/tests > > now you can hit return, and all you actually typed was cd > > scr[TAB]/ru[TAB]/te[TAB] > > ## Hopefully that is clear enough…a lot of CLI (and GUI) apps use tab completion (eg, google). > > Posted viahttp://www.ruby-forum.com/. That’s pretty useful information! Thanks a bunch for your time!