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Exporting MySQl result set to ...

CSV File :
sudo echo " select * from accountMaster" | mysql -u username -p database > accounts.txt;

TEXT FILE:
sudo echo " select * from accountMaster" | mysql -u username -p database > accounts.txt;

MAIL :
sudo echo "select * from campaignMaster" | mysql -u username -p database > "campaigns.txt" | mail xyz@pintoodomain.com

:-)

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