# # irb/lc/help-message.rb - # $Release Version: 0.9.5$ # $Revision: 11708 $ # $Date: 2007-02-13 08:01:19 +0900 (Tue, 13 Feb 2007) $ # by Keiju ISHITSUKA(keiju@ruby-lang.org) # # -- # # # Usage: irb.rb [options] [programfile] [arguments] -f Suppress read of ~/.irbrc -m Bc mode (load mathn, fraction or matrix are available) -d Set $DEBUG to true (same as `ruby -d') -r load-module Same as `ruby -r' -I path Specify $LOAD_PATH directory --inspect Use `inspect' for output (default except for bc mode) --noinspect Don't use inspect for output --readline Use Readline extension module --noreadline Don't use Readline extension module --prompt prompt-mode --prompt-mode prompt-mode Switch prompt mode. Pre-defined prompt modes are `default', `simple', `xmp' and `inf-ruby' --inf-ruby-mode Use prompt appropriate for inf-ruby-mode on emacs. Suppresses --readline. --simple-prompt Simple prompt mode --noprompt No prompt mode --tracer Display trace for each execution of commands. --back-trace-limit n Display backtrace top n and tail n. The default value is 16. --irb_debug n Set internal debug level to n (not for popular use) -v, --version Print the version of irb