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I'm running ri version 2.5.8 and ruby 1.9.2. If I try something like ri Enumerable | less, the paging is broken in less. I see output but I can't use CTRL-F or CTRL-B to page back and forward. If I try to, I just see the literal "^F" and "^B" characters output at the bottom of the screen. What's wrong?

user207421
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dan
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3 Answers3

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Try ri -T String | less.

If you want that behavior always you could put alias ri='ri -T' in your ~/.bashrc or ~/.bash_profile or ~/.profile, which ever you use.

the Tin Man
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  • Thanks, but that still doesn't change the behavior I described. Maybe something is wrong with my setup. – dan Nov 25 '10 at 19:10
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Try PAGER=/usr/bin/less ri Enumerable - specifying pager in environment variables did the trick for me.

For a permanent solution do something like echo "export PAGER=/usr/bin/less" >> ~/.bash_profile && source ~/.bash_profile

Tonni Tølbøll Lund Aagesen
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I can reproduce the problem on OSX 10.6 terminal and iTerm2 with ri version 2.5.8 and ruby 1.9.2. Did anyone find a fix? At the moment I can use the scrollbar of my graphical terminal client, but it gets tedious.

As a workaround I use the ORI gem, ri from within irb: https://github.com/dadooda/ori

Francis Siefken
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  • when you want to be updated about this dont post an answer to this question. fav it instead or write a comment. – toxicate20 Nov 24 '12 at 11:22