The EXCLUDE variable specifies files or directories that are excluded when backing up data. The exclude list is an argument to the EXCLUDE variable. If the name of a file or directory matches one of t...The EXCLUDE variable specifies files or directories that are excluded when backing up data. The exclude list is an argument to the EXCLUDE variable. If the name of a file or directory matches one of the names in the list, it is excluded from the backup. The following rules apply while specifying names in the exclude list: The exact name of the file or directory must be used. The asterisk (*), a wildcard character, must be either the first or the last character of the string.