string $fileName = "c:/test.txt"; 

// Open the file and get the file ID, so we can write to the file

// later

$fileID = `fileOpen $fileName "w"`;

// Write a string to the file, passing in the file ID

// as the first argument. Almost all File I/O commands

// take a file ID as the first argument.

writeString $fileID "This is some text";

// Be sure to close the file after you are done

fileClose $fileID;