Mathematica > Systems Interfaces & Deployment > File Operations > Directories & Directory Operations > DirectoryQ
BUILT-IN MATHEMATICA SYMBOL

DirectoryQ

DirectoryQ["name"]
gives True if the directory with the specified name exists, and gives False otherwise.

DetailsDetails

  • In DirectoryQ["name"], name is interpreted relative to your current directory.

ExamplesExamplesopen allclose all

Basic Examples (2)Basic Examples (2)

Check if the name corresponds to a directory:

In[1]:=
Click for copyable input
Out[1]=

The result is False if the file is not a directory or does not exist:

In[1]:=
Click for copyable input
Out[1]=
Top
New in 7
Send Feedback
Mathematica 9 is now available!

400+ new features, including the new Wolfram Predictive Interface, social network analysis, enterprise CDF deployment, and more »

Try Now
Buy/Upgrade
New to Mathematica? Find your learning path »
Have a question? Ask support »