shell 交互编程
自动交互方法一自动交互最关键的就是交互信息的自动输入，首先联想到文件重定向，在shell编程中有这样一种用法(参考Linux与UNIX SHELL编程指南 chapt 5.7)："command > /root/.ssh/authorized_keys"
expect "password: "
send "123\n"
expect eof
exit
END
done
(4)
#!/bin/sh
CONNECT_MYSQL="mysql -h 192.168.0.123 -uroot -p123456 test_database"
SQL="SELECT * FROM TEST_TABLE"
echo "${SQL}" | ${CONNECT_MYSQL}
(5)
#!/bin/sh
CONNECT_MYSQL="mysql -h 192.168.0.123 -uroot -p123456 test_database"
SQL="SELECT * FROM TEST_TABLE"
echo ${CONNECT_MYSQL}
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