linux - Bash escaping (MySQL GRANT ALL PRIVILEGES is failing) -

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there bash doesn't like. should escaped , how?

mysql --user=root --password=mypass vsftpd << eof grant privileges on `myusername\_%`.* 'myusername'@'%';" eof

i following error:

-bash: myusername_%: command not found error 1064 (42000) @ line 1: have error in sql syntax; check manual corresponds mysql server version right syntax use near '* 'myusername'@'%'' @ line 1

the backticks command substitution (same $()). try using single quotes on outer level , double quotes username , hostname:

mysql --user=root --password=mypass vsftpd 'grant privileges on `myusername\_%`.* "myusername"@"%";'

you can instruct here doc not expand variables quoting delimiter word, i'm not sure if works command substitution too:

mysql --user=root --password=mypass vsftpd << 'eof' grant privileges on `myusername\_%`.* 'myusername'@'%';" eof

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