irb's readline history

[Albert Schlef]

irb is nice, because is uses readline. I can press <key-up> to bring to
life previously typed lines. That's good. But if I exist irb and then
return to it the history is gone. So it's not like bash(1) and mysql(1)
that save the history is a file. Or is it? Is it possible to make irb
save the history in a file so that I don't have to retype everything if
I restart it?

 

[Albert Schlef]

But if I exist irb and then return to it [...]

I meant: "if I exit". Not "if I exist". Sorry about the spam.

 

[Avdi Grimm]

irb is nice, because is uses readline. I can press <key-up> to bring to
life previously typed lines. That's good. But if I exist irb and then
return to it the history is gone. So it's not like bash(1) and mysql(1)
that save the history is a file. Or is it? Is it possible to make irb
save the history in a file so that I don't have to retype everything if
I restart it?

Yes.

Utility Belt (http://utilitybelt.rubyforge.org/) enables this and many
other tweaks.

--
Avdi

Home: http://avdi.org
Developer Blog: http://avdi.org/devblog/
Twitter: http://twitter.com/avdi
Journal: http://avdi.livejournal.com

 

[Joel VanderWerf]

irb is nice, because is uses readline. I can press <key-up> to bring to
life previously typed lines. That's good. But if I exist irb and then
return to it the history is gone. So it's not like bash(1) and mysql(1)
that save the history is a file. Or is it? Is it possible to make irb
save the history in a file so that I don't have to retype everything if
I restart it?

Put this in your .irbrc:

IRB.conf[:SAVE_HISTORY] = 100