I could manage to take mysql database back from linux server with the following command
mysqldump -u root -pPASSWORD workspacedata > database.sql
after the complete backup the shell prompt returned without any error/message hence backup is complete successfully without any error.
Later restore the backed up database by executing the below command
mysql -u root -pPASSWORD workspacedata < database.sql
the restore did not complete and ended abruptly, please find the below message in the shell prompt
[root@crm opt]# mysql -u root -p workspace < workspace07112015.sql
ERROR 1005 (HY000) at line 13623: Can't create table 'workspace.inet_prelaunch_to_launch_info' (errno: 121)
Please help to troubleshoot and fix this.