# Run a command and capture its output
files = Cheetah.run("ls", "-la", :stdout => :capture)

# Run a command and handle errors
begin
  Cheetah.run("rm", "/etc/passwd")
rescue Cheetah::ExecutionFailed => e
  puts e.message
  puts "Standard output: #{e.stdout}"
  puts "Error ouptut:    #{e.stderr}"
end

require "cheetah"

# Run a command with arguments
Cheetah.run("tar", "xzf", "foo.tar.gz")

# Pass an input (as a string)
Cheetah.run("python", :stdin => source_code)

# Pass an input (as a stream)
File.open("huge_program.py") do |stdin|
  Cheetah.run("python", :stdin => stdin)
end

# Capture standard output
files = Cheetah.run("ls", "-la", :stdout => :capture)

# Capture both standard and error output
results, errors = Cheetah.run("grep", "-r", "User", ".", :stdout => :capture, :stderr => :capture)

# Capture standard output into a stream
File.open("files.txt") do |stdout|
  Cheetah.run("ls", "-la", :stdout => stdout)
end

# Run a command and handle errors
begin
  Cheetah.run("rm", "/etc/passwd")
rescue Cheetah::ExecutionFailed => e
  puts e.message
  puts "Standard output: #{e.stdout}"
  puts "Error ouptut:    #{e.stderr}"
end

# Log the execution
Cheetah.run("ls -l", :logger => logger)

# Change levels of logged messages
Cheetah.run("ls -l",
  :logger             => logger,
  :logger_level_info  => Logger::DEBUG,
  :logger_level_error => Logger::WARN
)

# If you're tired of passing the :logger option all the time...
Cheetah.default_options = { :logger = my_logger }
Cheetah.run("./configure")
Cheetah.run("make")
Cheetah.run("make", "install")
Cheetah.default_options = {}