# Shutting irb up **URL:** \ **Category:** Ruby\ **Created:** [March 2, 2007, 9:14pm UTC](https://www.ruby-forum.com/t/shutting-irb-up/87475 "2007-03-02T21:14:24Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [March 2, 2007, 9:14pm UTC](https://www.ruby-forum.com/t/shutting-irb-up/87475/1 "2007-03-02T21:14:24Z")
i looked forever, didn’t find this, and am posting for posterity harp:~ \> cat .irbrc IRB.conf[:PROMPT][IRB.conf[:PROMPT\_MODE] ][:RETURN]=’’ harp :~ \> irb irb(main):001:0\> 42 irb(main):002:0\> 43 irb(main):003:0\> puts 42 42 irb(main):004:0\> p 42 42 irb(main):005:0\> p ‘no echo’ “no echo” irb(main):006:0\> ‘no echo’ -a ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [March 2, 2007, 9:17pm UTC](https://www.ruby-forum.com/t/shutting-irb-up/87475/2 "2007-03-02T21:17:24Z")
That’s a service to humanity. ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [March 7, 2007, 9:44pm UTC](https://www.ruby-forum.com/t/shutting-irb-up/87475/3 "2007-03-07T21:44:57Z")
On 3/2/07, Ara.T.Howard [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > irb(main):003:0\> puts 42 > 42 > irb(main):004:0\> p 42 > 42 > irb(main):005:0\> p ‘no echo’ > “no echo” > irb(main):006:0\> ‘no echo’ Hmm, that’s pretty neat. It seems like it only works in .irbrc. It’d be nice if one could turn that off in the middle of a session in irb. Still, it’s nice to know it can be turned off at all! Thanks. ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [March 11, 2007, 9:25am UTC](https://www.ruby-forum.com/t/shutting-irb-up/87475/4 "2007-03-11T09:25:07Z")
Garance A Drosehn wrote: > > irb(main):002:0\> 43 > > Hmm, that’s pretty neat. It seems like it only works in .irbrc. It’d be > > nice > > if one could turn that off in the middle of a session in irb. Still, it’s > > nice > > to know it can be turned off at all! Thanks. You can turn it on and off by destructively modifying the string, this way: irb(main):027:0\> IRB.conf[:PROMPT][IRB.conf[:PROMPT\_MODE] ][:RETURN] =\> “=\> %s\n” irb(main):028:0\> IRB.conf[:PROMPT][IRB.conf[:PROMPT\_MODE] ][:RETURN].replace(’’) irb(main):029:0\> 1+2 irb(main):030:0\> IRB.conf[:PROMPT][IRB.conf[:PROMPT\_MODE] ][:RETURN].replace("=\> %s\n") =\> “=\> %s\n” irb(main):031:0\> 1+2 =\> 3 It should be pretty easy to define a function in your .irbrc that wraps this up nicely… ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [March 12, 2007, 2:52pm UTC](https://www.ruby-forum.com/t/shutting-irb-up/87475/5 "2007-03-12T14:52:41Z")
On 11/03/07, Joel VanderWerf [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > irb(main):028:0\> IRB.conf[:PROMPT][IRB.conf[:PROMPT\_MODE] > ][:RETURN].replace(‘’) > irb(main):029:0\> 1+2 Is this bound to some specific version of Ruby/IRB because it doesn’t seem to be working for me either in .irbrc or IRB itself: > > IRB.conf[:PROMPT][IRB.conf[:PROMPT\_MODE] ][:RETURN].replace( “” ) > > =\> “” > > 2 + 3 > > =\> 5 Alia:~/Projects/cominded/chitchat matt$ irb -v irb 0.9.5(05/04/13) Alia:~/Projects/cominded/chitchat matt$ ruby -v ruby 1.8.5 (2006-08-25) [i686-darwin8.8.2] But I really wish it would! Regards, Matt ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [March 12, 2007, 3:40pm UTC](https://www.ruby-forum.com/t/shutting-irb-up/87475/6 "2007-03-12T15:40:48Z")
On 3/12/07, Matt M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > IRB.conf[:PROMPT][IRB.conf[:PROMPT\_MODE] ][:RETURN].replace( “” ) > > > I put this in my .irbc module IRB def self.result\_format conf[:PROMPT][conf[:PROMPT\_MODE]][:RETURN] end def self.result\_format=(str) result\_format.replace(str) end def self.show\_results self.result\_format = “=\> %s\n” end def self.hide\_results self.result\_format = ‘’ end end rick@frodo:~$ irb irb(main):001:0\> 1+2 =\> 3 irb(main):002:0\> IRB.result\_format =\> “=\> %s\n” irb(main):003:0\> IRB.hide\_results irb(main):004:0\> 1+2 irb(main):005:0\> IRB.show\_results =\> “=\> %s\n” irb(main):006:0\> 1+2 =\> 3 irb(main):007:0\> I’m not sure that I’m in love with my naming, but it does seem to work. One thing I just discovered. I’ve got a few different versions of irb installed. If I try to run irb1.8.5 it doesn’t seem to find ~/.irbc If I symlinked ~/.irb1.8.5rc to ~/.irbrc it seemed to work. YMMV – Rick DeNatale My blog on Ruby [http://talklikeaduck.denhaven2.com/](http://talklikeaduck.denhaven2.com/) IPMS/USA Region 12 Coordinator [http://ipmsr12.denhaven2.com/](http://ipmsr12.denhaven2.com/) Visit the Project Mercury Wiki Site [http://www.mercuryspacecraft.com/](http://www.mercuryspacecraft.com/) ---
**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Post date:** [March 12, 2007, 5:55pm UTC](https://www.ruby-forum.com/t/shutting-irb-up/87475/7 "2007-03-12T17:55:10Z")
Matt M. wrote: > > > IRB.conf[:PROMPT][IRB.conf[:PROMPT\_MODE] ][:RETURN].replace( “” ) > > > =\> “” > > > > > 2 + 3 > > > =\> 5 > > Alia:~/Projects/cominded/chitchat matt$ irb -v > irb 0.9.5(05/04/13) > > Alia:~/Projects/cominded/chitchat matt$ ruby -v > ruby 1.8.5 (2006-08-25) [i686-darwin8.8.2] Works for me with the same irb version as yours, and ruby-1.8.4 and also ruby-1.8.6-preview3, on ubuntu. Haven’t tried 1.8.5 though.