Class: File
- Inherits:
-
Object
- Object
- File
- Defined in:
- lib/biopsy/base_extensions.rb
Overview
String
Class Method Summary collapse
-
.which(cmd) ⇒ Object
return the full path to the supplied cmd executable, if it exists in any location in PATH.
Class Method Details
.which(cmd) ⇒ Object
return the full path to the supplied cmd executable, if it exists in any location in PATH
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# File 'lib/biopsy/base_extensions.rb', line 15 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 end end return nil end |