足足整了两个小时

#!/bin/shmysql_port=3306mysql_username="admin"mysql_password="12345678"function_start_mysql(){    printf "Starting MySQL...\n"    /bin/sh /usr/local/webserver/mysql/bin/mysqld_safe --defaults-file=/data0/mysql/${mysql_port}/my.cnf 2>&1 > /dev/null &}function_stop_mysql(){    printf "Stoping MySQL...\n"    /usr/local/webserver/mysql/bin/mysqladmin -u ${mysql_username} -p${mysql_password} -S /tmp/mysql.sock shutdown}function_restart_mysql(){    printf "Restarting MySQL...\n"    function_stop_mysql    sleep 5    function_start_mysql}function_kill_mysql()  {      kill -9 $(ps -ef | grep 'bin/mysqld_safe' | grep ${mysql_port} | awk '{printf $2}')      kill -9 $(ps -ef | grep 'libexec/mysqld' | grep ${mysql_port} | awk '{printf $2}')   }if [ "$1" = "start" ]; then    function_start_mysqlelif [ "$1" = "stop" ]; then    function_stop_mysqlelif [ "$1" = "restart" ]; thenfunction_restart_mysqlelif [ "$1" = "kill" ]; thenfunction_kill_mysqlelse    printf "Usage: /data0/mysql/${mysql_port}/mysql {start|stop|restart|kill}\n"fi