As of Gambas 3.1, three new instructions are available to change the user/owner, group or permissions of a file.

The CHOWN (change owner) instruction changes the owner/proprietor of a file or directory:

CHOWN Path TO User

• Path is the file or directory path,
• User is the name of the new owner/proprietor.

The CHGRP (change group) instruction changes the group membership of a file or directory:

CHGRP Path TO Group 

• Path is the file or directory path,
• Group is the name of the new group.

The CHMOD (change mode) instruction changes the permissions (mode) of a file or directory:

CHMOD Path TO Mode 

• Path is the file or directory path,
• Mode is a string of nine characters describing the new mode.

At http://gambaswiki.org/wiki/cat/mode or https://wiki.ubuntuusers.co.uk/rights you can read about the mode syntax. In addition, any omitted or unknown character in the mode string is ignored. In this way, you can change selected values of file permissions.

Example:

CHMOD sFilePath To "rwxrw-r--"