Irb's readline history

ruby-talk
1

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?

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2

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

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

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3

Yes.

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

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On Wed, Apr 23, 2008 at 4:01 PM, Albert Schlef <albertschlef@gmail.com> wrote:

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?

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4

Albert Schlef wrote:

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

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