To ensure that GT.M properly interprets the name of a file you specify as part of a command line, file-names must either appear as the last item on the command line or be surrounded by quotation marks. Because UNIX file naming conventions permit the use of virtually any character in a file-name, once a qualifier such as -FILE_NAME or -LOG introduces a file-name and the first character after the equal sign is not a quotation mark, GT.M treats the entire remainder of the line as the file-name. When using quotation marks around file-names, GDE interprets a pair of embedded quotation marks as a single quotation mark within the file-name. Note that the use of Ctrl or punctuation characters such as exclamation mark (!), asterisk (*), or comma (,) in a file-name creates subsequent significant operational file management challenges.