File.socket?(file_name) â true or false Instance Public methods Returns true if the named file is a socket. file_name can be an IO object.

File.sticky?(file_name) â true or false Instance Public methods Returns true if the named file has the sticky bit set.

File.symlink?(file_name) â true or false Instance Public methods Returns true if the named file is a symbolic link.

File.world_readable?(file_name) â fixnum or nil Instance Public methods If file_name is readable by others, returns an integer representing the file permission bits of file_name. Returns nil otherwise. The meaning of the bits is platform dependent; on Unix systems, see stat(2). file_name can be an IO object. File.world_readable?("/etc/passwd") #=> 420 m = File.world_readable?("/etc/passwd") sprintf("%o", m) #=> "644"

File.world_writable?(file_name) â fixnum or nil Instance Public methods If file_name is writable by others, returns an integer representing the file permission bits of file_name. Returns nil otherwise. The meaning of the bits is platform dependent; on Unix systems, see stat(2). file_name can be an IO object. File.world_writable?("/tmp") #=> 511 m = File.world_writable?("/tmp") sprintf("%o", m) #=> "777"

File.writable?(file_name) â true or false Instance Public methods Returns true if the named file is writable by the effective user id of this process.

File.writable_real?(file_name) â true or false Instance Public methods Returns true if the named file is writable by the real user id of this process.

File.zero?(file_name) â true or false Instance Public methods Returns true if the named file exists and has a zero size. file_name can be an IO object.

cd(dir, options = {}) Class Public methods Options: verbose Changes the current directory to the directory dir. If this method is called with block, resumes to the old working directory after the block execution finished. FileUtils.cd('/', :verbose => true) # chdir and report it FileUtils.cd('/') do # chdir [...] # do something end # return to original directory chdir

chdir(dir, options = {}) Class Public methods Alias for: cd