Re: symbolic permission for `all'

[Bob Proulx]

Karl Berry wrote:
> It would be nice if there was a symbolic permission meaning `all
> modes'.  Say `a', for the sake of argument.  It would useful
> in a command like  chmod ug+rw,o-a  to take away all permissions from
> `other'.  o-rwxst, besides being verbose, feels like there might be some
> other kind of permission in the future or on some other system.
> 
> Another way to achieve the same result would be to allow numeric modes,
> at least after =, as in chmod ug+rw,o=0 (which gets `invalid mode
> string').

Hmm...  How about this?

  touch foo
  ll foo
  -rw-r--r--    1 bob      bob             0 May 27 23:07 foo

  chmod ug+rw,o= foo

  ll foo
  -rw-rw----    1 bob      bob             0 May 27 23:07 foo

Bob