Bug in pg_dump

Hello, I have created a SH file, named "copia.sh", with this code:




*#!/bin/bashRUTASALIDA="copiaSeguridadLuminarias.backup"RENOMBRE="luminarias-$(date
+%F).backup"pg_dump --host=localhost --port=5432 --username=postgres
--no-password --table=srv_industriales.luminarias postgis --format custom
--blobs -v --file=$RUTASALIDA*



When I run this file in a virtual machine whit unix using the command "sh
copia.sh", it is created the file with name
"copiaSeguridadLuminarias.backup?".

Would you tell me why add the interrogation character in the name file?

Thank for your help.

Best regards, Álex Meseguer.