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	Absolute beginner question by lezzgiles :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message On FC11, just downloaded & installed scala using yum install scala, got version 2.7.4. I've run it interactively and it works fine. I create a one-line hello world script... println("Hello, world from a script!") ...and run it... [lezzgiles@bedroom scala]$ scala hello.scala bedroom: bedroom [lezzgiles@bedroom scala]$ Note that "bedroom" is my hostname. I've googled for some kind of answer, but can't find anything. If I try it with a non-existent file, it does the sensible thing: [lezzgiles@bedroom scala]$ scala /no-such-file no such file: /no-such-file [lezzgiles@bedroom scala]$ If I try it with a file that doesn't contain valid scala, it also just prints out the hostname a couple of times: [lezzgiles@bedroom scala]$ scala ~/.bash_profile bedroom: bedroom [lezzgiles@bedroom scala]$ I really want to start playing with this language, but I'm sort-of stuck here... Lezz Giles
	Re: Absolute beginner question by Dean Wampler-2 :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message OOPS! didn't reply to all: 2.7.4 is fairly old, but I just tried that version and it worked fine. Try "set -x" on the command line, then run it. I'm not sure it will tell us anything, but... dean On Thu, Nov 5, 2009 at 4:04 PM, lezzgiles <lezzgiles@...> wrote: On FC11, just downloaded & installed scala using yum install scala, got version 2.7.4. I've run it interactively and it works fine. I create a one-line hello world script... println("Hello, world from a script!") ...and run it... [lezzgiles@bedroom scala]$ scala hello.scala bedroom: bedroom [lezzgiles@bedroom scala]$ Note that "bedroom" is my hostname. I've googled for some kind of answer, but can't find anything. If I try it with a non-existent file, it does the sensible thing: [lezzgiles@bedroom scala]$ scala /no-such-file no such file: /no-such-file [lezzgiles@bedroom scala]$ If I try it with a file that doesn't contain valid scala, it also just prints out the hostname a couple of times: [lezzgiles@bedroom scala]$ scala ~/.bash_profile bedroom: bedroom [lezzgiles@bedroom scala]$ I really want to start playing with this language, but I'm sort-of stuck here... Lezz Giles -- View this message in context: http://old.nabble.com/Absolute-beginner-question-tp26222796p26222796.html Sent from the Scala - User mailing list archive at Nabble.com. -- Dean Wampler coauthor of "Programming Scala" (O'Reilly) - http://programmingscala.com twitter: @deanwampler, @chicagoscala Chicago-Area Scala Enthusiasts (CASE): - http://groups.google.com/group/chicagoscala - http://www.meetup.com/chicagoscala/ (Meetings) http://www.linkedin.com/in/deanwampler http://www.polyglotprogramming.com http://aquarium.rubyforge.org http://www.contract4j.org
	Re: Absolute beginner question by Kevin Wright-4 :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message We've seen something like this on the lists before. In that case it was a problem with networking config on the machine Take a look at this thread: http://old.nabble.com/println-don't-work-to25194605.html#a25195269 On Thu, Nov 5, 2009 at 10:04 PM, lezzgiles <lezzgiles@...> wrote: > > On FC11, just downloaded & installed scala using yum install scala, got > version 2.7.4. > > I've run it interactively and it works fine. > > I create a one-line hello world script... > > println("Hello, world from a script!") > > ...and run it... > > [lezzgiles@bedroom scala]$ scala hello.scala > bedroom: bedroom > [lezzgiles@bedroom scala]$ > > Note that "bedroom" is my hostname. I've googled for some kind of answer, > but can't find anything. If I try it with a non-existent file, it does the > sensible thing: > > [lezzgiles@bedroom scala]$ scala /no-such-file > no such file: /no-such-file > [lezzgiles@bedroom scala]$ > > If I try it with a file that doesn't contain valid scala, it also just > prints out the hostname a couple of times: > > [lezzgiles@bedroom scala]$ scala ~/.bash_profile > bedroom: bedroom > [lezzgiles@bedroom scala]$ > > I really want to start playing with this language, but I'm sort-of stuck > here... > > Lezz Giles > -- > View this message in context: http://old.nabble.com/Absolute-beginner-question-tp26222796p26222796.html > Sent from the Scala - User mailing list archive at Nabble.com. > >
	Re: Absolute beginner question by Naftoli Gugenheim :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message This came up a few times. You can try searching the archives, but if I remember correctly it may have to do with your hostnames not being set up properly. The interpreter uses fsc, the resident compiler server, if I'm not mistaken. ------------------------------------- Dean Wampler<deanwampler@...> wrote: OOPS! didn't reply to all: 2.7.4 is fairly old, but I just tried that version and it worked fine. Try "set -x" on the command line, then run it. I'm not sure it will tell us anything, but... dean On Thu, Nov 5, 2009 at 4:04 PM, lezzgiles <lezzgiles@...> wrote: > > On FC11, just downloaded & installed scala using yum install scala, got > version 2.7.4. > > I've run it interactively and it works fine. > > I create a one-line hello world script... > > println("Hello, world from a script!") > > ...and run it... > > [lezzgiles@bedroom scala]$ scala hello.scala > bedroom: bedroom > [lezzgiles@bedroom scala]$ > > Note that "bedroom" is my hostname. I've googled for some kind of answer, > but can't find anything. If I try it with a non-existent file, it does the > sensible thing: > > [lezzgiles@bedroom scala]$ scala /no-such-file > no such file: /no-such-file > [lezzgiles@bedroom scala]$ > > If I try it with a file that doesn't contain valid scala, it also just > prints out the hostname a couple of times: > > [lezzgiles@bedroom scala]$ scala ~/.bash_profile > bedroom: bedroom > [lezzgiles@bedroom scala]$ > > I really want to start playing with this language, but I'm sort-of stuck > here... > > Lezz Giles > -- > View this message in context: > http://old.nabble.com/Absolute-beginner-question-tp26222796p26222796.html > Sent from the Scala - User mailing list archive at Nabble.com. > > -- Dean Wampler coauthor of "Programming Scala" (O'Reilly) - http://programmingscala.com twitter: @deanwampler, @chicagoscala Chicago-Area Scala Enthusiasts (CASE): - http://groups.google.com/group/chicagoscala - http://www.meetup.com/chicagoscala/ (Meetings) http://www.linkedin.com/in/deanwampler http://www.polyglotprogramming.com http://aquarium.rubyforge.org http://www.contract4j.org
	Re: Absolute beginner question by Daniel Sobral :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Funny you couldn't find anything. Basically, Scala requirest `hostname` to be reachable on the network. If you can't ping it, you can't use neither "scala" nor "fsc". You can use "scalac" to compile, though. The reason for that is that "fsc" install itself as a daemon, to speed up compilation. The "scala" command, used for scripts and REPL, uses "fsc" to improve its own performance. My suggestion, edit /etc/hosts and add your hostname to the line with 127.0.0.1. On Thu, Nov 5, 2009 at 8:04 PM, lezzgiles <lezzgiles@...> wrote: On FC11, just downloaded & installed scala using yum install scala, got version 2.7.4. I've run it interactively and it works fine. I create a one-line hello world script... println("Hello, world from a script!") ...and run it... [lezzgiles@bedroom scala]$ scala hello.scala bedroom: bedroom [lezzgiles@bedroom scala]$ Note that "bedroom" is my hostname. I've googled for some kind of answer, but can't find anything. If I try it with a non-existent file, it does the sensible thing: [lezzgiles@bedroom scala]$ scala /no-such-file no such file: /no-such-file [lezzgiles@bedroom scala]$ If I try it with a file that doesn't contain valid scala, it also just prints out the hostname a couple of times: [lezzgiles@bedroom scala]$ scala ~/.bash_profile bedroom: bedroom [lezzgiles@bedroom scala]$ I really want to start playing with this language, but I'm sort-of stuck here... Lezz Giles -- View this message in context: http://old.nabble.com/Absolute-beginner-question-tp26222796p26222796.html Sent from the Scala - User mailing list archive at Nabble.com. -- Daniel C. Sobral Veni, vidi, veterni.
	Re: Absolute beginner question by lezzgiles :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Problem solved - I hadn't set up /etc/hosts with the filename. I've seen similar problems with redhat-based distros with other tools. Thanks for the help - I'm looking forward to replacing my Perl/Python/Ruby expertise with Scala... Lezz Daniel Sobral wrote: Funny you couldn't find anything. Basically, Scala requirest `hostname` to be reachable on the network. If you can't ping it, you can't use neither "scala" nor "fsc". You can use "scalac" to compile, though. The reason for that is that "fsc" install itself as a daemon, to speed up compilation. The "scala" command, used for scripts and REPL, uses "fsc" to improve its own performance. My suggestion, edit /etc/hosts and add your hostname to the line with 127.0.0.1. On Thu, Nov 5, 2009 at 8:04 PM, lezzgiles <lezzgiles@gmail.com> wrote: > > On FC11, just downloaded & installed scala using yum install scala, got > version 2.7.4. > > I've run it interactively and it works fine. > > I create a one-line hello world script... > > println("Hello, world from a script!") > > ...and run it... > > [lezzgiles@bedroom scala]$ scala hello.scala > bedroom: bedroom > [lezzgiles@bedroom scala]$ > > Note that "bedroom" is my hostname. I've googled for some kind of answer, > but can't find anything. If I try it with a non-existent file, it does the > sensible thing: > > [lezzgiles@bedroom scala]$ scala /no-such-file > no such file: /no-such-file > [lezzgiles@bedroom scala]$ > > If I try it with a file that doesn't contain valid scala, it also just > prints out the hostname a couple of times: > > [lezzgiles@bedroom scala]$ scala ~/.bash_profile > bedroom: bedroom > [lezzgiles@bedroom scala]$ > > I really want to start playing with this language, but I'm sort-of stuck > here... > > Lezz Giles > -- > View this message in context: > http://old.nabble.com/Absolute-beginner-question-tp26222796p26222796.html > Sent from the Scala - User mailing list archive at Nabble.com. > > -- Daniel C. Sobral Veni, vidi, veterni.
	Re: Absolute beginner question by Daniel Sobral :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message FWIW, I have a lot of experience with Perl. If you need help to relate some concept from Perl to Scala, feel free to e-mail me directly. On Fri, Nov 6, 2009 at 1:56 AM, lezzgiles <lezzgiles@...> wrote: Problem solved - I hadn't set up /etc/hosts with the filename. I've seen similar problems with redhat-based distros with other tools. Thanks for the help - I'm looking forward to replacing my Perl/Python/Ruby expertise with Scala... Lezz Daniel Sobral wrote: > > Funny you couldn't find anything. > > Basically, Scala requirest `hostname` to be reachable on the network. If > you > can't ping it, you can't use neither "scala" nor "fsc". You can use > "scalac" > to compile, though. > > The reason for that is that "fsc" install itself as a daemon, to speed up > compilation. The "scala" command, used for scripts and REPL, uses "fsc" to > improve its own performance. > > My suggestion, edit /etc/hosts and add your hostname to the line with > 127.0.0.1. > On Thu, Nov 5, 2009 at 8:04 PM, lezzgiles <lezzgiles@...> wrote: > >> >> On FC11, just downloaded & installed scala using yum install scala, got >> version 2.7.4. >> >> I've run it interactively and it works fine. >> >> I create a one-line hello world script... >> >> println("Hello, world from a script!") >> >> ...and run it... >> >> [lezzgiles@bedroom scala]$ scala hello.scala >> bedroom: bedroom >> [lezzgiles@bedroom scala]$ >> >> Note that "bedroom" is my hostname. I've googled for some kind of >> answer, >> but can't find anything. If I try it with a non-existent file, it does >> the >> sensible thing: >> >> [lezzgiles@bedroom scala]$ scala /no-such-file >> no such file: /no-such-file >> [lezzgiles@bedroom scala]$ >> >> If I try it with a file that doesn't contain valid scala, it also just >> prints out the hostname a couple of times: >> >> [lezzgiles@bedroom scala]$ scala ~/.bash_profile >> bedroom: bedroom >> [lezzgiles@bedroom scala]$ >> >> I really want to start playing with this language, but I'm sort-of stuck >> here... >> >> Lezz Giles >> -- >> View this message in context: >> http://old.nabble.com/Absolute-beginner-question-tp26222796p26222796.html >> Sent from the Scala - User mailing list archive at Nabble.com. >> >> > > > -- > Daniel C. Sobral > > Veni, vidi, veterni. > > -- View this message in context: http://old.nabble.com/Absolute-beginner-question-tp26222796p26226541.html Sent from the Scala - User mailing list archive at Nabble.com. -- Daniel C. Sobral Veni, vidi, veterni.