determine if a file exists in the file system - Maple Help

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FileTools[Exists] - determine if a file exists in the file system

Calling Sequence

Exists(file)

Parameters

file

-

filename or the file descriptor of an open file

Description

• 

The Exists(file) command checks the file system for a specified file. If the file exists, Exists returns true; otherwise, it returns false.

Examples

FileTools[Text]WriteStringfile,data:

FileTools[Text]Closefile:

FileTools[Exists]file

true

(1)

FileTools[Exists]doesnotexist

false

(2)

FileTools[Remove]file

See Also

file_types, FileTools, FileTools[IsDirectory], FileTools[IsExecutable], FileTools[IsReadable], FileTools[IsWritable], FileTools[ModificationTime], FileTools[Remove], FileTools[Size], FileTools[Status], FileTools[Text][Close], FileTools[Text][WriteString], IO_errors


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