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Utilities to replace common UNIX commands


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Utilities to replace common UNIX commands in Makefiles etc.


Add this line to your application's Gemfile:

gem 'un'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install un


ruby -run -e cp -- [OPTION] SOURCE DEST
ruby -run -e ln -- [OPTION] TARGET LINK_NAME
ruby -run -e mv -- [OPTION] SOURCE DEST
ruby -run -e rm -- [OPTION] FILE
ruby -run -e mkdir -- [OPTION] DIRS
ruby -run -e rmdir -- [OPTION] DIRS
ruby -run -e install -- [OPTION] SOURCE DEST
ruby -run -e chmod -- [OPTION] OCTAL-MODE FILE
ruby -run -e touch -- [OPTION] FILE
ruby -run -e wait_writable -- [OPTION] FILE
ruby -run -e mkmf -- [OPTION] EXTNAME [OPTION]
ruby -run -e httpd -- [OPTION] [DocumentRoot]
ruby -run -e colorize -- [FILE]
ruby -run -e help [COMMAND]


After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at