Question

Has anyone seen this: ?? No jgem command works at all?? Though jruby -S gem list does work. I’m using jruby 1.3.1 and Sun Java6 jre

root@test:/usr/local: jgem --version  
1.3.3  

root@test:/usr/local: jgem update --system  
JRuby limited openssl loaded. gem install jruby-openssl for full support.
http://wiki.jruby.org/wiki/JRuby_Builtin_OpenSSL
Updating RubyGems
Updating rubygems-update
Successfully installed rubygems-update-1.3.6
/usr/local/jruby/lib/ruby/site_ruby/1.8/rubygems/commands/update_command.rb:103:Warning: Gem::SourceIndex#search support for String patterns is deprecated
Updating RubyGems to 1.3.6
Installing RubyGems 1.3.6
RubyGems 1.3.6 installed  

root@test:/usr/local: jgem list  
/usr/local/jruby/bin/jgem: line 8: require: command not found
/usr/local/jruby/bin/jgem: line 9: require: command not found
/usr/local/jruby/bin/jgem: line 10: require: command not found
/usr/local/jruby/bin/jgem: line 12: required_version: command not found
/usr/local/jruby/bin/jgem: line 14: unless: command not found
/usr/local/jruby/bin/jgem: line 15: abort: command not found
/usr/local/jruby/bin/jgem: line 16: end: command not found
/usr/local/jruby/bin/jgem: line 18: args: command not found
/usr/local/jruby/bin/jgem: line 20: begin: command not found
/usr/local/jruby/bin/jgem: line 21: Gem::GemRunner.new.run: command not found
/usr/local/jruby/bin/jgem: line 22: rescue: command not found
/usr/local/jruby/bin/jgem: line 23: exit: e.exit_code: numeric argument required

Answer 1

Note that this only seemed to happen on Linux (not OSX) And I fixed it by replacing the line at the top of the jgem script from:

#!/mnt/java/jruby-1.4.0/bin/jruby

to

#!/usr/bin/env jruby