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.\"Ruby is copyrighted by Yukihiro Matsumoto <matz@netlab.jp>. .Dd November 7, 2012 .Dt IRB(1) "" "Ruby Programmers Reference Guide" .Os UNIX .Sh NAME .Nm irb .Nd Interactive Ruby Shell .Sh SYNOPSIS .Nm .Op Fl -version .Op Fl dfm .Op Fl I Ar directory .Op Fl r Ar library .Op Fl - Ns Oo no Oc Ns inspect .Op Fl - Ns Oo no Oc Ns readline .Op Fl -prompt Ar mode .Op Fl -prompt-mode Ar mode .Op Fl -inf-ruby-mode .Op Fl -simple-prompt .Op Fl -noprompt .Op Fl -tracer .Op Fl -back-trace-limit Ar n .Op Fl -irb_debug Ar n .Op Fl - .Op program_file .Op argument ... .Pp .Sh DESCRIPTION .Nm is the REPL(read-eval-print loop) environment for Ruby programs. .Pp .Sh OPTIONS .Bl -tag -width "1234567890123" -compact .Pp .It Fl -version Prints the version of .Nm . .Pp .It Fl E Ar external Ns Op : Ns Ar internal .It Fl -encoding Ar external Ns Op : Ns Ar internal Same as `ruby -E' . Specifies the default value(s) for external encodings and internal encoding. Values should be separated with colon (:). .Pp You can omit the one for internal encodings, then the value .Pf ( Li "Encoding.default_internal" ) will be nil. .Pp .It Fl I Ar path Same as `ruby -I' . Specifies .Li $LOAD_PATH directory .Pp .It Fl U Same as `ruby -U' . Sets the default value for internal encodings .Pf ( Li "Encoding.default_internal" ) to UTF-8. .Pp .It Fl d Same as `ruby -d' . Sets .Li $DEBUG to true. .Pp .It Fl f Suppresses read of .Pa ~/.irbrc . .Pp .It Fl h .It Fl -help Prints a summary of the options. .Pp .It Fl m Bc mode (load mathn, fraction or matrix are available) .Pp .It Fl r Ar library Same as `ruby -r'. Causes irb to load the library using require. .Pp .It Fl -inspect Uses `inspect' for output (default except for bc mode) .Pp .It Fl -noinspect Doesn't use inspect for output .Pp .It Fl -readline Uses Readline extension module. .Pp .It Fl -noreadline Doesn't use Readline extension module. .Pp .It Fl -prompt Ar mode .It Fl -prompt-mode Ar mode Switch prompt mode. Pre-defined prompt modes are `default', `simple', `xmp' and `inf-ruby'. .Pp .It Fl -inf-ruby-mode Uses prompt appropriate for inf-ruby-mode on emacs. Suppresses --readline. .Pp .It Fl -simple-prompt Makes prompts simple. .Pp .It Fl -noprompt No prompt mode. .Pp .It Fl -tracer Displays trace for each execution of commands. .Pp .It Fl -back-trace-limit Ar n Displays backtrace top .Ar n and tail .Ar n Ns . The default value is 16. .Pp .It Fl -irb_debug Ar n Sets internal debug level to n (not for popular use) .Pp .El .Pp .Sh ENVIRONMENT .Bl -tag -compact .It Ev IRBRC .Pp .El .Pp Also .Nm depends on same variables as .Xr ruby 1 . .Pp .Sh FILES .Bl -tag -compact .It Pa ~/.irbrc Personal irb initialization. .Pp .El .Pp .Sh EXAMPLES .Dl % irb .Dl irb(main):001:0> Ic 1 + 1 .Dl 2 .Dl irb(main):002:0> Ic def t(x) .Dl irb(main):003:1> Ic x+1 .Dl irb(main):004:1> Ic end .Dl => nil .Dl irb(main):005:0> Ic t(3) .Dl => 4 .Dl irb(main):006:0> Ic if t(3) == 4 .Dl irb(main):007:1> Ic p :ok .Dl irb(main):008:1> Ic end .Dl :ok .Dl => :ok .Dl irb(main):009:0> Ic quit .Dl % .Pp .Sh SEE ALSO .Xr ruby 1 . .Pp .Sh REPORTING BUGS .Bl -bullet .Li Security vulnerabilities should be reported via an email to .Aq security@ruby-lang.org Ns .Li . Reported problems will be published after being fixed. .Pp .Li And you can report other bugs and feature requests via the Ruby Issue Tracking System (http://bugs.ruby-lang.org). Do not report security vulnerabilities via the system because it publishes the vulnerabilities immediately. .El .Sh AUTHORS Written by Keiju ISHITSUKA. Back

Edit File : irb.1 | Size : 3.44 KB

.\"Ruby is copyrighted by Yukihiro Matsumoto <matz@netlab.jp>.
.Dd November 7, 2012
.Dt IRB(1) "" "Ruby Programmers Reference Guide"
.Os UNIX
.Sh NAME
.Nm irb
.Nd Interactive Ruby Shell
.Sh SYNOPSIS
.Nm
.Op Fl -version
.Op Fl dfm
.Op Fl I Ar directory
.Op Fl r Ar library
.Op Fl - Ns Oo no Oc Ns inspect
.Op Fl - Ns Oo no Oc Ns readline
.Op Fl -prompt Ar mode
.Op Fl -prompt-mode Ar mode
.Op Fl -inf-ruby-mode
.Op Fl -simple-prompt
.Op Fl -noprompt
.Op Fl -tracer
.Op Fl -back-trace-limit Ar n
.Op Fl -irb_debug Ar n
.Op Fl -
.Op program_file
.Op argument ...
.Pp
.Sh DESCRIPTION
.Nm
is the REPL(read-eval-print loop) environment for Ruby programs.
.Pp
.Sh OPTIONS
.Bl -tag -width "1234567890123" -compact
.Pp
.It Fl -version
Prints the version of
.Nm .
.Pp
.It Fl E Ar external Ns Op : Ns Ar internal
.It Fl -encoding Ar external Ns Op : Ns Ar internal
Same as `ruby -E' .
Specifies the default value(s) for external encodings and internal encoding. Values should be separated with colon (:).
.Pp
You can omit the one for internal encodings, then the value
.Pf ( Li "Encoding.default_internal" ) will be nil.
.Pp
.It Fl I Ar path
Same as `ruby -I' .
Specifies
.Li $LOAD_PATH
directory
.Pp
.It Fl U
Same as `ruby -U' .
Sets the default value for internal encodings
.Pf ( Li "Encoding.default_internal" ) to UTF-8.
.Pp
.It Fl d
Same as `ruby -d' .
Sets
.Li $DEBUG
to true.
.Pp
.It Fl f
Suppresses read of
.Pa ~/.irbrc .
.Pp
.It Fl h
.It Fl -help
Prints a summary of the options.
.Pp
.It Fl m
Bc mode (load mathn, fraction or matrix are available)
.Pp
.It Fl r Ar library
Same as `ruby -r'.
Causes irb to load the library using require.
.Pp
.It Fl -inspect
Uses `inspect' for output (default except for bc mode)
.Pp
.It Fl -noinspect
Doesn't use inspect for output
.Pp
.It Fl -readline
Uses Readline extension module.
.Pp
.It Fl -noreadline
Doesn't use Readline extension module.
.Pp
.It Fl -prompt Ar mode
.It Fl -prompt-mode Ar mode
Switch prompt mode. Pre-defined prompt modes are
`default', `simple', `xmp' and `inf-ruby'.
.Pp
.It Fl -inf-ruby-mode
Uses prompt appropriate for inf-ruby-mode on emacs.
Suppresses --readline.
.Pp
.It Fl -simple-prompt
Makes prompts simple.
.Pp
.It Fl -noprompt
No prompt mode.
.Pp
.It Fl -tracer
Displays trace for each execution of commands.
.Pp
.It Fl -back-trace-limit Ar n
Displays backtrace top
.Ar n
and tail
.Ar n Ns .
The default value is 16.
.Pp
.It Fl -irb_debug Ar n
Sets internal debug level to n (not for popular use)
.Pp
.El
.Pp
.Sh ENVIRONMENT
.Bl -tag -compact
.It Ev IRBRC
.Pp
.El
.Pp
Also
.Nm
depends on same variables as
.Xr ruby 1 .
.Pp
.Sh FILES
.Bl -tag -compact
.It Pa ~/.irbrc
Personal irb initialization.
.Pp
.El
.Pp
.Sh EXAMPLES
.Dl % irb
.Dl irb(main):001:0> Ic 1 + 1
.Dl 2
.Dl irb(main):002:0> Ic def t(x)
.Dl irb(main):003:1> Ic   x+1
.Dl irb(main):004:1> Ic end
.Dl => nil
.Dl irb(main):005:0> Ic t(3)
.Dl => 4
.Dl irb(main):006:0> Ic if t(3) == 4
.Dl irb(main):007:1> Ic p :ok
.Dl irb(main):008:1> Ic end
.Dl :ok
.Dl => :ok
.Dl irb(main):009:0> Ic quit
.Dl %
.Pp
.Sh SEE ALSO
.Xr ruby 1 .
.Pp
.Sh REPORTING BUGS
.Bl -bullet
.Li Security vulnerabilities should be reported via an email to
.Aq security@ruby-lang.org Ns
.Li .
Reported problems will be published after being fixed.
.Pp
.Li And you can report other bugs and feature requests via the
Ruby Issue Tracking System (http://bugs.ruby-lang.org).
Do not report security vulnerabilities
via the system because it publishes the vulnerabilities immediately.
.El
.Sh AUTHORS
Written by Keiju ISHITSUKA.

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