Home Core 2. Home Classes Methods. In Files dir. Parent Object. Included Modules Enumerable. Files grammar. Dir Objects of class Dir are directory streams representing directories in the underlying file system.
Public Class Methods Dir[ string [, string Equivalent to calling Dir. If no block is given, an enumerator is returned instead. Returns true if the named file is a directory, false otherwise. Deprecated method. Don't use. Got config. Returns the path to the current working directory of this process as a string.
Matches any one character. Examples: Dir [ "config.? Returns the home directory of the current user or the named user if given. Returns a new directory object for the named directory.
It's so easy with Ruby to get a list of files in the current directory that I hesitate to write this, but hey, this blog is for me and my bad memory, so here's a quick note on how to use Ruby to get a list of files of a certain type in a directory. To have a little fun with this, I'll use irb the interactive Ruby shell environment to show how to do this. First, if you've never used irb before, it's very easy.
From here you can type any regular Ruby command, so now I'll show how to list all the JPG files in the current directory. If path is a dotfile, or starts with a period, then the starting dot is not dealt with the start of the extension. An empty string will also be returned when the period is the last character in path. If the file argument is a symbolic link, it will resolve the symbolic link and use the file referenced by the link. Returns true if path matches against pattern. The pattern is not a regular expression; instead it follows rules similar to shell filename globbing.
It may contain the following metacharacters:. Matches any file. Can be restricted by other values in the glob. Matches any one character in set. Behaves like a Regexp union? The same glob pattern and flags are used by Dir::glob.
Returns true if the named file exists and the effective group id of the calling process is the owner of the file. Returns false on Windows. Equivalent to File::chmod , but does not follow symbolic links so it will change the permissions associated with the link, not the file referenced by the link.
Often not available. Equivalent to File::chown , but does not follow symbolic links so it will change the owner associated with the link, not the file referenced by the link.
Returns number of files in the argument list. Creates a new name for an existing file using a hard link. Not available on all platforms.
Same as File::stat , but does not follow the last symbolic link. Instead, reports on the link itself. Sets the access and modification times of each named file to the first two arguments. If a file is a symlink, this method acts upon the link itself as opposed to its referent; for the inverse behavior, see File. Returns the number of file names in the argument list.
Returns the modification time for the named file as a Time object. Opens the file named by filename according to the given mode and returns a new File object. See IO. If a file is being created, permission bits may be given in perm. These mode and permission bits are platform dependent; on Unix systems, see open 2 and chmod 2 man pages for details.
The new File object is buffered mode or non-sync mode , unless filename is a tty. With no associated block, File. If the optional code block is given, it will be passed the opened file as an argument and the File object will automatically be closed when the block terminates.
The value of the block will be returned from File. If a file is being created, its initial permissions may be set using the perm parameter. Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search.
Is there any class in ruby for listing all the files in a directory and all the files in the subdirectory? You might look at Dir. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?
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