I want to backup a MySQL database. So, I'll be creating
a backup user that has global SELECT permission and whatever
else is needed to run
mysqldump -u backup -p=BLAH --all-databases --opt > dump.sql
However, how do I avoid putting the password on the command line
where it will be visible to anyone running ps awx?
echo BLAH | mysqldump -u backup -p --all-databases ...
mysqldump -u backup -p --all-databases ... <<EOF
But neither works. It seems mysqldump wants to read from the "tty",
not from stdin.
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