[root@cent5-64b-40 openssl]# gem install execjs
Fetching: multi_json-1.0.3.gem (100%)
Fetching: execjs-1.2.9.gem (100%)
Successfully installed multi_json-1.0.3
Successfully installed execjs-1.2.9
2 gems installed
Installing ri documentation for multi_json-1.0.3...
Installing ri documentation for execjs-1.2.9...
Installing RDoc documentation for multi_json-1.0.3...
Installing RDoc documentation for execjs-1.2.9...
[root@cent5-64b-40 openssl]#
[root@cent5-64b-40 openssl]# gem list --local
*** LOCAL GEMS ***
execjs (1.2.9)
multi_json (1.0.3)
rdtool (0.6.29)
rttool (1.0.3.0)
ruby-oci8 (2.0.6)
rubygems-update (1.8.11)
[root@cent5-64b-40 openssl]# gem which execjs
/usr/local/lib/ruby/gems/1.8/gems/execjs-1.2.9/lib/execjs.rb
[root@cent5-64b-40 openssl]# irb
irb(main):001:0> require 'execjs'
LoadError: no such file to load -- execjs
from (irb):1:in `require'
from (irb):1
