Saco un grep filtro manualmente

fosadiaria.py

@@ -70,7 +70,7 @@ class FosaDiaria():
     def _BuscarExcelDescargado(self,tmp="/dev/shm/tmpscdecas.txt"):
         rta = False
         sleep(0.5)
-        os.system(f"""ls {self.CarpetaDescarga} -ls | grep xls | grep {self.cabezaera}2> {tmp}""")
+        os.system(f"""ls {self.CarpetaDescarga} -ls | grep xls 2> {tmp}""")
         file1 = open(tmp, 'r')
         Lines = file1.readlines()
         for line in Lines: