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ri output can't be piped into less

I'm running ri version 2.5.8 and ruby 1.9.2. If I try something like ri Enu开发者_如何学运维merable | 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?


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.


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


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

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