12.6. Changing File or Directory Permissions: The Chmod Factory

To change permissions on a file or directory, use the Chmod factory. The permission argument uses POSIX-style permission bits and should typically be expressed as an octal, not decimal, number:

Command(
    "file.out",
    "file.in",
    action=[
        Copy("$TARGET", "$SOURCE"),
        Chmod("$TARGET", 0o755),
    ]
)
      

Which executes:

% scons -Q
Copy("file.out", "file.in")
Chmod("file.out", 0755)