Database dump by command line

Dump Postgres Database using ssh

Use pg_dump command command:
pg_dump -U USERNAME YOUR-DATABASE-NAME | ssh user@remote.server.com "dd of=/pgsql/$(date +'%d-%m-%y')"

Dump MySQL Database using ssh

Type the following command:
mysqldump -u USERnAME -p'PASSWORD' YOUR-DATABASE-NAME | ssh user@remote.server.com "dd of=/mysql/$(date +'%d-%m-%y')"