Check if a file or folder exists

It can be useful in batch files to know whether a file or folder exists. One can use files as semaphores and for inter proces communication (IPC).

To check if a file exists:

IF EXIST c:\windows\ ECHO File exists!

To check if a directory exists (Notice the nul):

IF EXIST c:\windows\nul ECHO Directory exists!

Note if working with long directory names with spaces, then one needs to put quotes around the directory-/file-path (Notice that nul should not be included):

IF EXIST “C:\Program Files\” ECHO Directory exists!

More Info MS KB65994