JMP provides the following functions to determine whether a file or directory is writable before attempting to write to them. Use these functions in combination with Is Directory(path) and Is File(path) to verify a script destination and attribute. See “Is Directory(path)” and “Is File(path)” in the JSL Syntax Reference book for additional information.
The Is Directory Writable(path) function returns 1 if the directory specified in the path argument is writable and 0 otherwise.
The Is File Writable(path) function returns 1 if the file specified in the path argument is writable and 0 otherwise.