clear command is not displayed to other users.

commands.go

@@ -139,6 +139,10 @@ func runCommands(line string, u *User) {
 	case "mute":
 		muteCMD(strings.TrimSpace(strings.TrimPrefix(line, "mute")), u)
 		return
+	case "clear":
+		if clear_if_rest_empty(strings.TrimSpace(strings.TrimPrefix(line, "clear")), u) {
+			return
+		}
 	}
 
 	if u.isBridge {
@@ -232,6 +236,16 @@ func clearCMD(_ string, u *User) {
 	u.term.Write([]byte("\033[H\033[2J"))
 }
 
+// If rest is empty, run the clear command and return true.
+// Otherwise, return false.
+func clear_if_rest_empty(rest string, u *User) bool {
+	if rest == "" {
+		clearCMD(rest, u)
+		return true
+	}
+	return false
+}
+
 func usersCMD(_ string, u *User) {
 	u.room.broadcast("", printUsersInRoom(u.room))
 }