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A folder that is one level up from the current directory in a file hierarchy. In a DOS, Windows or Mac command line, two dots (..) refer to the preceding folder/directory level.
Use File 's getParentFile() method and String. lastIndexOf() to retrieve just the immediate parent directory.
There is no way to go to the parent folder right out of the search results, as that is not how it operates, however if you double-click on the quick launch search result, resulting in navigating to the folder, then press alt+up then it will go to the parent folder.
With a directory, a parent directory is a directory containing the current directory. For example, in the MS-DOS path below, the "Windows" directory is the parent directory of the "System32" directory, and C:\ is the root directory.
Try this:
fs.readFile(__dirname + '/../../foo.bar');
Note the forward slash at the beginning of the relative path.
Use path.join http://nodejs.org/docs/v0.4.10/api/path.html#path.join
var path = require("path"),
fs = require("fs");
fs.readFile(path.join(__dirname, '..', '..', 'foo.bar'));
path.join() will handle leading/trailing slashes for you and just do the right thing and you don't have to try to remember when trailing slashes exist and when they dont.
I know it is a bit picky, but all the answers so far are not quite right.
The point of path.join() is to eliminate the need for the caller to know which directory separator to use (making code platform agnostic).
Technically the correct answer would be something like:
var path = require("path");
fs.readFile(path.join(__dirname, '..', '..', 'foo.bar'));
I would have added this as a comment to Alex Wayne's answer but not enough rep yet!
EDIT: as per user1767586's observation
The easiest way would be to use path.resolve:
path.resolve(__dirname, '..', '..');
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