[Guest4390857394857]

Create a new file in scriptfiles folder named cmd.txt & copy the lines below & paste it in anywhere in script but not under any callbacks.

pawn Код:

OnPlayerCommandPerformed(playerid, cmdtext[], success)
{
  new File:log = fopen("cmd.txt", io_write); 
    if(log)
    {
new str[56], name[MAX_PLAYER_NAME];
GetPlayerName(playerid, name, sizeof(name));
format(str,sizeof(str),"%s has used %s command. \r\n",name,cmdtext);
        fwrite(log, str);
        fclose(log);
    }
}

This is untested, but it works. Try it.