[Konstantinos]

No need for a plugin to rename it.

pawn Код:

stock frename(const oldname[], const newname[]) 
{
    if (!fexist(oldname)) return 0;
    
    new 
        File: oldfile = fopen(oldname, io_read),
        File: newfile = fopen(newname, io_write),
        line[128];
    
    if (!oldfile || !newfile) return 0;
    
    while (fread(oldfile, line)) fwrite(newfile, line);
    fclose(oldfile);
    fclose(newfile);
    fremove(oldname);
    return 1;
}

and (from the above example):

pawn Код:

if (!frename(stringr, another)) return SendClientMessage(playerid, -1, "It couldn't rename the file. Try again!");