root@fjolsmidjan:/home/playman/Downloads/ZoneMinder-1.24.4# zmupdate.pl
Warning, overriding installed ./zm.conf file with local copy
Please give a valid option

Usage: zmupdate.pl <-c,--check|-f,--freshen|-v<version>,--version=<version>> [-u<dbuser> -p<dbpass>]>
Parameters are :-
-c, --check                      - Check for updated versions of ZoneMinder
-f, --freshen                    - Freshen the configuration in the database. Equivalent of old zmconfig.pl -noi
-v<version>, --version=<version> - Upgrade to the current version from <version>
-u<dbuser>, --user=<dbuser>      - Alternate DB user with privileges to alter DB
-p<dbpass>, --pass=<dbpass>      - Password of alternate DB user with privileges to alter DB