class Exedit::Command
A system command checking class
Public Class Methods
which(cmd)
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Gets the path to a system command, returns nil if none found
# File lib/exedit/command.rb, line 5 def self.which(cmd) exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : [''] ENV['PATH'].split(File::PATH_SEPARATOR).each do |path| exts.each do |ext| exe = File.join(path, "#{cmd}#{ext}") return exe if File.executable?(exe) && !File.directory?(exe) end end nil end