Someone

on *:TEXT:!tb *:#:{
  if ($nick isop $chan) {
    if ($2) {
      if ($left($2,1) == -) {
        if (($3 ison $chan) && ($4 isnum)) {
          if ($left($2,2) == -s) var %mult = $4
          if ($left($2,2) == -m) var %mult = $calc($4 * 60)
          if ($left($2,2) == -h) var %mult = $calc($4 * 3600)
          ban $+(-ku,%mult) $chan $3 2 $iif($5-,$v1,Requested)
        }
        else notice $nick please follow this syntax !tb [-smh -s=seconds -m=minutes -h=hours] <nick> <time> [reason]
      }
      else {
        if (($2 ison $chan) && ($3 isnum)) {
          ban $+(-ku,$3) $chan $2 2 $iif($4-,$v1,Requested)
        }
        else notice $nick please follow this syntax !tb [-smh -s=seconds -m=minutes -h=hours] <nick> <time> [reason]
      }
    }
    else notice $nick please follow this syntax !tb [-smh -s=seconds -m=minutes -h=hours] <nick> <time> [reason]
  }
}