To save a program file on diskette.
SAVE filename,[,a] SAVE filename,[,p]
filename is a quoted string that follows the normal MS-DOS naming conventions. If filename already exists, the file will be written over. If the extension is omitted, .bas will be used.
The a option saves the file in ASCII format. Otherwise, GW-BASIC saves the file in a compressed binary format. ASCII format takes more space on the diskette, but some diskette access commands (for example, the MERGE command and some MS-DOS commands, such as TYPE) may require an ASCII format file.
The p option protects the file by saving it in an encoded binary format. When a protected file is later run or loaded, any attempt to list or edit it fails. When the p option is used, make an additional copy under another name or diskette to facilitate future program maintenance.
The following command saves the file com2.bas in the ASCII format:
SAVE "COM2", A
The following command saves the file prog.bas in binary format, and protects access:
SAVE "PROG", P