使用shell脚本根据输入的用户名，数据库名，密码从DB2数据库导出数据
（1）a.sh脚本如下
#!/usr/bin/bash
read -p "please input your DBNAME: " DBNAME
read -p "please input your username: " username
read -p "please input your password: " password
db2 connect to $DBNAME user $username using $password
db2 "EXPORT to /home/Practice/data/a.del of del select * from A"
（2）连接Linux，使用下面命令执行
su - db2inst1 -c "/home/Practice/a.sh"
上面这条代码是关键，其中a.sh文件存储在/home/Practice路径下
[root@localhost Practice]# chmod +x a.sh
[root@localhost data]# su - db2inst1 -c "/home/Practice/a.sh"
please input your DBNAME: oliverdb
please input your username: db2inst1
please input your password: db2inst1 Database Connection Information Database server = DB2/LINUXX8664 10.5.
SQL authorization ID = DB2INST1
Local database alias = OLIVERDB SQL3104N The Export utility is beginning to export data to file
"/home/Practice/data/a.del". SQL3105N The Export utility has finished exporting "" rows. Number of rows exported:
到此处为止，数据已经从数据库oiliverDB导出到了目录/home/Practice/data下。