kpsestat - compute octal mode from mode of existing file
kpsestat mode file
kpsestat prints the octal permission of file modified according to mode
on standard output. The mode parameter accepts a subset of the
symbolic permissions accepted by chmod(1). Use = as the mode to obtain
the unchanged permissions.
kpsestat accepts the following additional options:
--help Print help message and exit.
--version
Print version information and exit.
chmod(1).