line 1: Dump: command not found

最近做一个实验，要监控oracle的alert日志，脚本写好后发现执行报如下错误，但结果可以正常输出

[root@localhost ~]# sh  tt.sh
/root/alert: line 1: Dump: command not found
/root/alert: line 2: Fri: command not found
/root/alert: line 3: ORACLE: command not found
/root/alert: line 5: Windows: command not found
/root/alert: line 6: CPU: command not found
/root/alert: line 7: Process: command not found
/root/alert: line 8: syntax error near unexpected token `Avail/Total'
'root/alert: line 8: `Memory (Avail/Total): Ph:1943M/3062M, Ph+PgF:3654M/4953M, VA:1937M/2047M
CHECKING ORACLE ALERT FILE
检查了半天没检查出来到底是哪错了，以下是脚本的部分内容

#查找日志文件结果
d= `find  /root  -name alert`
#过滤ORA-错误
c=`tail -2000 /root/alert | grep ORA-`

#判断条件
#如果文件存在，则进行日志扫描
if [  -e  $d ];then

echo "CHECKING ORACLE ALERT FILE "
fi

最后发现d= `find  /root  -name alert`处“=”后多了个空格，将空格去掉后，脚本顺利执行
shell脚本不能一点马虎啊，搞死人！以后要真的很注意