1. 结构
  
2. 案例
#!/bin/bash
echo "wayne : input 1"
echo "echo  : input 2"
echo "we    : input 3"
read -t 30 -p "input your choice: " cho
case "$cho" in
        "1")
                echo "wayne love echo"
                ;;
        "2")
                echo "echo love wayne"
                ;;
        "3")
                echo "we love ew"
                ;;
        *)
                echo "no no no"
                ;;
esac
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"case2.sh" 22L, 274C
#!/bin/bash
read -t 30 -p "input yes or no: " cho
case "$cho" in
        "yes")
                echo "your input is yes"
                ;;
        "no")
                echo "your input is no"
                ;;
        *)
                echo "invalid inputs" 
                ;;
esac
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"case1.sh" 15L, 184C
原文:http://www.cnblogs.com/wnzhong/p/6390980.html