Add support for backup nextcloud accounts.

hosts/backup_script.sh.sample

@@ -101,6 +101,7 @@ post_backup_commands=()
 ## 
 dir_backup="<blank seperatet list of directories>"
 
+
 ## - backup network filesystems like nfs or smbfs
 ## -
 ## - NOTICE!
@@ -148,10 +149,12 @@ mysql_password=backup
 ## -
 mysql_gzip=false
 
+
 ## - restart apache after mysqldump
 ## -
 restart_apache=false
 
+
 ## - also store postresql databases ?
 ## - 
 pgsql_backup=false
@@ -175,6 +178,32 @@ svn_source_base_path="<path-to-svn i.e. /data/svn>"
 svn_gzip=false
 
 
+## - backup nextcloud accounts
+## - 
+nextcloud_backup=false
+
+## - nextcloud_server_url
+## -
+nextcloud_server_url="https://${srcHost}"
+
+## - nextcloud_account_arr
+## -
+## - nextcloud_accounts="<name1>;<password1>[;server_url] [<name2;password2>[;server_url] [..
+## -
+## - Notice:
+## -    if 'server_url' is ommited, the value of variable 'nextcloud_server_url', the
+## -    default on, will be used.
+## -
+## - Example:
+## -
+## -    nextcloud_accounts="
+## -       user1;P4ssw0rd1
+## -       user2;P4ssw0rd2;non-default-cloud-server-url
+## -    "
+## -       
+nextcloud_accounts=""
+
+
 ## - Give rsync arguments here. Maybe you wish 
 ## - to exclude some files or diredtories
 ## -