ruby gem command

Ruby Gem command and rubygem command I. Introduction Gem is a standard package for managing Ruby libraries and programs. It is very convenient to find, install, upgrade, and uninstall software packages through Ruby Gem (such as http://rubygems.org/)

Transferred from: http://www.jianshu.com/p/728184da1699Gem Introduction:Gem is a standard package for managing Ruby libraries and programs, and it is easy to find, install, upgrade, and uninstall packages through Ruby Gems such as

Ruby-v # view the ruby VERSION ruby-e '''require "watir"; puts Watir: IE: version'' # view the watir VERSION Rvm list known # list known ruby versions Rvm install 1.9.3 Rvm use 1.9.3 | rvm use system Rvm use 1.9.3 -- default Rvm list # list local

Ruby + gem common commands: ruby-e & amp; #39; & amp; #39; require & quot; watir & quot; putsWatir: IE: VERSION & amp; #39; & amp; #39; # View watir version gem-v # gem version gemupdate # Update all packages gemupdate -- s ruby + gem common

Gem Common commands Gem-v # View version of RubyGems software gem help #显示RubyGem使用帮助 Gems help Example #列出RubyGem命令一些使用范例 gem install [gemname] # ann Install the specified gem package, the program will first find the GEM package from this

Ruby + gem Common commands: ruby-e ''require "watir"; puts Watir: IE :: VERSION ''# view watir VERSION gem-v # gem VERSION gem update # update all packages gem update -- system # update RubyGems software gem install rake # install rake, install rake

Ruby You don't need to talk about this. RVM It is used to help you install the Ruby environment, help you manage multiple Ruby environments, and help you manage the Ruby environment on which the Ruby application you develop uses the machine. The

Ruby You don't need to talk about this.Rvm It is used to help you install the ruby environment, help you manage multiple Ruby environments, and help you manage the ruby environment on which the ruby application you develop uses the machine. The ruby

GEM-related commands use 1. Show help and version of Gem Copy Code code as follows: Gem–h/--help #显示gem的帮助 Gem–v/--version#显示gem的版本号 2. List all available software for the remote library Copy Code code as follows:

The customer's server is Ubuntu + apache2 + ruby on rails. Currently, some pages on the customer's server always report the 500 error. The ruby language is only known and has not been studied in depth. I have never set up a ruby server environment,