• package — The name of a loaded package or the fully qualified path name of the file defining the functions. If package is not supplied, the current package is used.

• output — Writes a list of functions to filename where filename can be any of the following values:

◦ The name of a file. (This could be a complete path name.) A right angle bracket (>) preceding the file name causes the list of aliases to be appended to the end of the file. An exclamation point (!) preceding the file name causes the file to be rewritten, if it exists, without a prompt for confirmation.

◦ An asterisk (*) specifying the message window. If preceded by a right angle bracket (>), the output is appended to the message window instead of replacing its contents. Additional predefined message windows msgwin2, msgwin3, and msgwin4 use the specifier output=*2, output=*3 and output=*4, respectively.

◦ A question mark (?) preceding an output file name. If the file name starts with a question mark, the file name is actually a variable name whose value is set to the output produced by the command. If the second character is a right angle bracket (>), the output is appended to the current value of the variable instead of replacing it.