Checks for the existence of a file or folder and returns its attributes.
AttributeString := FileExist(FilePattern)
The path, filename, or file pattern to check. FilePattern is assumed to be in %A_WorkingDir% if an absolute path isn't specified.
This function returns the attribute string (a subset of "RASHNDOCT") of the first matching file or folder:
If the file has no attributes (rare), "X" is returned. If no file is found, an empty string is returned.
This function is a combination of IfExist and FileGetAttrib.
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. Similarly, the statement
if InStr(FileExist("C:\My Folder"), "D") would be true only if the file exists and is a directory.
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.
IfExist, FileGetAttrib, Blocks, Else, File-loops
Shows a message box if at least one text file does exist in a directory.
if FileExist("D:\Docs\*.txt") MsgBox, At least one .txt file exists.
Shows a message box if a file does not exist.
if !FileExist("C:\Temp\FlagFile.txt") MsgBox, The target file does not exist.