Someone

  if {[validuser $arg] && [validchan $chan] == "1"} {
    set rank ""
    if {[matchattr $arg A|]} { set rank "Fleet Admiral," }
    if {[matchattr $arg B|]} { set rank "Admiral," }
    if {[matchattr $arg C|]} { set rank "Vice Admiral," }
    if {[matchattr $arg D|]} { set rank "Up.Rear Admiral," }
    if {[matchattr $arg E|]} { set rank "Captain," }
    if {[matchattr $arg |A $chan]} { set rank "Commander on $chan," }
    if {[matchattr $arg |B $chan]} { set rank "Lt.Commander on $chan," }
    if {[matchattr $arg |C $chan]} { set rank "Lieutenant on $chan," }
    if {[matchattr $arg |D $chan]} { set rank "Lt.Jr Grade on $chan," }
    if {[matchattr $arg |E $chan]} { set rank "Ensign on $chan," }
    if {[matchattr $arg |F $chan]} { set rank "Civillian" }
    putserv "PRIVMSG $chan :$arg\'s rank is \002<$rank>"
return
} elseif {$arg == ""} {
    set rank ""
    if {[matchattr $hand A|]} { set rank "Fleet Admiral," }
    if {[matchattr $hand B|]} { set rank "$rank Admiral," }
    if {[matchattr $hand C|]} { set rank "$rank Vice Admiral," }
    if {[matchattr $hand D|]} { set rank "$rank Up.Rear Admiral," }
    if {[matchattr $hand E|]} { set rank "$rank Captain," }
    if {[matchattr $hand |A $chan]} { set rank "$rank Commander $chan," }
    if {[matchattr $hand |B $chan]} { set rank "$rank Lt.Commander $chan," }
    if {[matchattr $hand |C $chan]} { set rank "$rank Lieutenant $chan," }
    if {[matchattr $hand |D $chan]} { set rank "$rank Lt.Jr Grade $chan," }
    if {[matchattr $hand |E $chan]} { set rank "$rank Ensign $chan," }
    if {[matchattr $hand |F $chan]} { set rank "Civillian" }
    putserv "PRIVMSG $chan :$nick your rank is \002<$rank>"
return
} elseif {$arg == ""} {
    set rank ""
    if {[matchattr $hand A|]} { set rank "Fleet Admiral," }
    if {[matchattr $hand B|]} { set rank "$rank Admiral," }
    if {[matchattr $hand C|]} { set rank "$rank Vice Admiral," }
    if {[matchattr $hand D|]} { set rank "$rank Up.Rear Admiral," }
    if {[matchattr $hand E|]} { set rank "$rank Captain," }
    if {[matchattr $hand |A $chan]} { set rank "$rank Commander $chan," }
    if {[matchattr $hand |B $chan]} { set rank "$rank Lt.Commander $chan," }
    if {[matchattr $hand |C $chan]} { set rank "$rank Lieutenant $chan," }
    if {[matchattr $hand |D $chan]} { set rank "$rank Lt.Jr Grade $chan," }
    if {[matchattr $hand |E $chan]} { set rank "$rank Ensign $chan," }
    if {[matchattr $hand |F $chan]} { set rank "Civillian" }
    putserv "PRIVMSG $chan :$nick your rank is \002<$rank>"
   } elseif {[validuser $arg] && [validchan $chan] == "0"} {
  putserv "PRIVMSG $chan :$arg has no rank on $chan"
} else {
putserv "PRIVMSG $chan :No rank for $arg"
}
}