The file class is typically used for opening and closing files, as well as a few methods like deleting them and stat'ing them.
If you want to manipulate a file, not open it, also check out the Pathname class, as well as the FileUtils class.
To create a directory you'll need to use the Dir.mkdir method.
Here's how to do the equivalent of "chmod u+x filename"
File.class_eval do def self.addmod(flags, filename) themode=stat(filename).mode | flags chmod(themode, filename) endend
Although there's no error checking and the return value could probablybe something better (like themode).
So after defining that, your 'u+w' would be:@File.addmod(0200, 'filename')@fromhttp://www.ruby-forum.com/topic/196999#new
This is actually Enumerable#grep, and I believe it just works piece-wise, likeFile.each_line{|l|yield l if l=~ /whatever/ }
This is useful for combining objects that aren't (or might not be) strings into a path. Seehere.