The Close(file) command closes the specified file, which is assumed to have been opened implicitly by a FileTools[Text] function or by Open.

The Close function does not return anything.

Closing a file ensures that all data is written to disk.

When exiting Maple by using the quit, done, or stop command, all open files are automatically closed.

Closing a file that is not open raises an error.

$\mathrm{testfile}≔\mathrm{FileTools}\left[\mathrm{JoinPath}\right]\left(\left[\mathrm{FileTools}\left[\mathrm{TemporaryDirectory}\right]\left(\right)\,''test''\right]\right)$

$\mathrm{testfile}≔''/tmp/test''$

$\mathrm{FileTools}\left[\mathrm{Text}\right]\left[\mathrm{Open}\right]\left(\mathrm{testfile}\right)$

$0$

$\mathrm{FileTools}\left[\mathrm{Text}\right]\left[\mathrm{WriteString}\right]\left(\mathrm{testfile}\,''This\; is\; a\; test\backslash n''\right)$

$15$

$\mathrm{FileTools}\left[\mathrm{Text}\right]\left[\mathrm{Close}\right]\left(\mathrm{testfile}\right)$