CHMOD
CHMOD file, mode
Change permissions of a file. The string file holds the
file name and follows OS file naming conventions. mode
provides the file permission and must be compatible with system call
chmod()‘s ’mode’ parameter.
See ACCESS to get information on file permissions.
Linux
mode is a number best represented in octal: 0oUGO with
U: User; G: Group; O: Other
U, G and O are each defined the following way:
| Value | Permission |
|---|---|
| 0 | no |
| 1 | x (execute) |
| 2 | w (write) |
| 3 | w + x |
| 4 | r (read) |
| 5 | r + x |
| 6 | r + w |
| 7 | r + w + x |
Example
' Make myfile available to anyone (read/write)
CHMOD "myfile.bas", 0o666
' Make myfile available to anyone (execute/read/write)
CHMOD "myfile.bas", 0o777
' Make myfile available to user (read/write)
' All others only read
CHMOD "myfile.bas", 0o644Windows
in Windows the read-only flag can be set with mode = 1
and unset with mode = -1
Example
' Make myfile read-only
CHMOD "myfile.bas", 1
' Make myfile read and write
CHMOD "myfile.bas", -1Code samples using CHMOD