Change message subcommands

Use these subcommands to edit messages.

Item Description
~e Edits the message using the e editor (default is e).
~v Edits the message using the vi editor (default is vi).
~w filename Writes the message to filename.
~! command Starts a shell, runs command, and returns to the editor.
~| command Pipes the message to standard input of command and replaces the message with the standard output from that command.