msqldump from commandline

by Bente Olsen.  

I hope someone can help me with a useful command to do a mysqldump.

I have tried the method described in moodle docs:

mysqldump -h example.com -u myusername --password=mypassword -C -Q -e --create-options mydatabasename > moodle-database.sql

it returns

mysqldump: unknown option '--'

Then I tried the method mentioned here:

mysqldump -u root -p (pw) moodledb > moodleSQL.sql

which returns

mysqldump: Got error: 1044: Access denied for user 'moodleuser'@'localhost' to database '(pw)' when selecting the database

mysqldump -u root -p moodledb > moodleSQL.sql

returns

mysqldump: Got error: 1044: Access denied for user 'moodleuser'@'localhost' to database 'moodle' when using LOCK TABLES

Thanks in advance