Re: updating shell environment variables

[Johan Bockgård]

Pascal Bourguignon <spam@mouse-potato.com> writes:

> All emacs _commands_ are _functions_ too.

<nitpick>

"command"
     A "command" is an object that `command-execute' can invoke; it is
     a possible definition for a key sequence. Some functions are
     commands; a function written in Lisp is a command if it contains
     an interactive declaration (*note Defining Commands::). Such a
     function can be called from Lisp expressions like other
     functions; in this case, the fact that the function is a command
     makes no difference.

     Keyboard macros (strings and vectors) are commands also, even
     though they are not functions. A symbol is a command if its
     function definition is a command; such symbols can be invoked
     with `M-x'. The symbol is a function as well if the definition is
     a function. *Note Command Overview::.

(info "(elisp)What Is a Function")

</nitpick>