FileExist

Checks for the existence of a file or folder and returns its attributes.

AttributeString := FileExist(FilePattern)

Parameters

FilePattern

Type: String

The path, filename, or file pattern to check. FilePattern is assumed to be in A_WorkingDir if an absolute path isn't specified.

Return Value

Type: String

This function returns the attributes of the first matching file or folder. This string is a subset of RASHNDOCT, where each letter means the following:

If the file has no attributes (rare), "X" is returned. If no file or folder is found, an empty string is returned.

Remarks

Note that searches such as InStr(FileExist("FolderWithFilesAndSubfolders\*"), "D") only tells you whether the first matching file is a folder, not whether a folder exists. In this case, use DirExist instead, such as DirExist("FolderWithFilesAndSubfolders\*").

Unlike FileGetAttrib, FileExist supports wildcard patterns and always returns a non-empty value if a matching file exists.

Since an empty string is seen as "false", the function's return value can always be used as a quasi-boolean value. For example, the statement if FileExist("C:\My File.txt") would be true if the file exists and false otherwise.

Since FilePattern may contain wildcards, FileExist may be unsuitable for validating a file path which is to be used with another function or program. For example, FileExist("*.txt") may return attributes even though "*.txt" is not a valid filename. In such cases, FileGetAttrib is preferred.

Related

DirExist, FileGetAttrib, File-loops

Examples

#1

if FileExist("D:\")
    MsgBox "The drive exists."
if FileExist("D:\Docs\*.txt")
    MsgBox "At least one .txt file exists."
if !FileExist("C:\Temp\FlagFile.txt")
    MsgBox "The target file does not exist."

#2: The following example shows how to check the file for a particular attribute:

if InStr(FileExist("C:\My File.txt"), "H")
    MsgBox "The file is hidden."