To clarify @JulienPalard's comment above, you can achieve your goal with the following commands.
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Shell 1:
$ mkfifo mypipe
$ chmod 666 mypipe
$ tail -f mypipe | mysql -umyName -p mySchema
, mysql. , - mypipe, mysql .
, tail , .
tail (Shell 2: input) mysql.
Shell 2:
$ echo 'show tables;' > mypipe
$ echo 'insert into mytable (1,2,3);' > mypipe