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Shell scripting in ruby
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#!/usr/bin/ruby -w | |
#system('ls -la') #=> outputs the output of that command | |
#system('skype') #open skype using system command. | |
#http://www.dreamsyssoft.com/ruby-scripting-tutorial/loops-tutorial.php | |
require 'optparse' | |
options = {:name => nil, :age => nil} | |
parser = OptionParser.new do|opts| | |
opts.banner = "Usage: ruby_linux.rb [options]" | |
opts.on('-n', '--name name', 'Name') do |name| | |
options[:name] = name; | |
end | |
opts.on('-a', '--age age', 'Age') do |age| | |
options[:age] = age; | |
end | |
opts.on('-h', '--help', 'Displays Help') do | |
puts opts | |
exit | |
end | |
end | |
parser.parse! | |
if options[:name] == nil | |
print 'Enter Name: ' | |
options[:name] = gets.chomp | |
end | |
if options[:age] == nil | |
print 'Enter Age: ' | |
options[:age] = gets.chomp | |
end | |
sayHello = 'Hello ' + options[:name] + ', ' | |
if Integer(options[:age]) == 100 | |
sayAge = 'You are already 100 years old!' | |
elsif Integer(options[:age]) < 100 | |
sayAge = 'You will be 100 in ' + String(100 - Integer(options[:age])) + ' years!' | |
else | |
sayAge = 'You turned 100 ' + String(Integer(options[:age]) - 100) + ' years ago!' | |
end | |
puts sayHello + sayAge |
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