Question

I just updated my ruby version and now when I run irb in command line, I get this weird:

1.9.2p290 :001 > 

every line. Before it was a simple >

How can I get it back again?

Answer 1

You can edit your ~/.irbrc file to change the prompt (command line prefix). See this answer for an example. You could put this in there to start:

IRB.conf[:PROMPT][:CUSTOM] = {:PROMPT_I => ">> "}
IRB.conf[:PROMPT_MODE] = :CUSTOM
IRB.conf[:AUTO_INDENT] = true

.irbrc is a Ruby script that irb runs when it starts up that lets you configure your prompt.