if判断错误(已解决)

Yuri

1. 
   
2. #!/bin/sh
   
3. m=`mount |grep hda5`
   
4. if [ $m"x" == "x" ]
   
5. then
   
6. echo -n "Mountting ..."
   
7. mount /dev/hda5 /opt/mnt/rootfs
   
8. echo "...       [OK]"
   
9. else
   
10. echo "Mount Point is busy"
    
11. fi
    

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有错麽?
我不知道那里问题,判断为真是执行正常,
为假是就提示: line 3: [: too many arguments



解决方法:
判断的时候尽量是用[[]]

troll

1. #!/bin/sh
   
2. if ! mount | grep hda5; then
   
3. echo -n "Mountting ..."
   
4. mount /dev/hda5 /opt/mnt/rootfs
   
5. echo "...       [OK]"
   
6. else
   
7. echo "Mount Point is busy"
   
8. fi

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不用test。