Can you edit your posting using code tags? Is there supposed to be a space in the string "ssmfkfaliases"?
As per the
ypmatch manpage, the command requires at least two arguments, the first to the second-to-last arguments are the map lookup keys, and the last is the map itself. The list of maps can be generated with
ypwhich.
Please consider using
getent, as in
getent aliases ssmfkf or
getent passwd ssmfkf.