mysql - mysqldump not working in jenkins execute shell -

i have shell script running cron job, creates database dump backup purposes. when tried doing same in jenkins execute shell, following line seems giving errors:

mysqldump -p thepassword -u theussr --all-databases > databases.sql 

what happens following error gets databases.sql file:

usage: mysqldump [options] database [tables] or     mysqldump [options] --databases [options]          db1 [db2 db3...] or     mysqldump [options] --all-databases [options] more options, use mysqldump --help 

i confused going wrong here. tried "-r databases.sql" , file comes out empty error being printed in console.

i appreciate if help.

thanks

for me, works in jenkins:

mysqldump -hxx.xx.xx.xx -pmy_pwd -umy_user db_name > ${filename}

i generating file name time stamp, like: filename=$(date +'%y%d%m-%h_%m').sql