how can i gzip the result file of mysqldump?

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hi,
i want the result of mysqldump to be gzipped like extracting it as gz file from phpMyAdmin.

i used the following command:
mysqldump --add-drop-database=true -uusername -ppassword -hlocalhost --databases myDB | gzip > mysql.gz

but it does not work. the resulted file can not be extracted for the error:

---------------------------
Error
---------------------------
C:\mysql.gz
The archive is either in unknown format or damaged
---------------------------
OK
---------------------------

Posted 12-Mar-12 1:51am

Brainy Girl

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Graham Breach · Answer 1 · 2012-03-12T03:30:00

Solution 1

Insert a "-" between gzip and the redirect:

mysqldump --add-drop-database=true -uusername -ppassword -hlocalhost --databases myDB | gzip - > mysql.gz

The "-" tells gzip to read from stdin.

Posted 12-Mar-12 3:30am

Graham Breach