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rubygetch

How to get a single character without pressing enter?

How can I get a single keyboard character from the terminal with Ruby without pressing enter? I tried Curses::getch, but that didn't really work for me.

Solution

  • http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/2999

    #!/usr/bin/ruby

begin
  system("stty raw -echo")
  str = STDIN.getc
ensure
  system("stty -raw echo")
end
p str.chr

    (Tested on my OS X system, may not be portable to all Ruby platforms). See http://www.rubyquiz.com/quiz5.html for some additional suggestions, including for Windows.