Shell scipt两种判断方式

最新推荐文章于 2023-04-13 16:06:26 发布

原创最新推荐文章于 2023-04-13 16:06:26 发布 · 596 阅读

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该程序允许用户输入Y或N来选择是否继续或中断操作，并通过不同的响应进行反馈。

1、

#!/bin/bash
#Program:
#    This program shows the user's choice 
#History:
#    2013/08/26  ydonghao
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH

read -p "Please input (Y/N): " a
echo $a
[ $a=Y -o $a=y ] &&  echo "OK, continue" && exit 0
[ $a=N -o $a=n ] &&  echo "Oh, interrupt" && exit 0
echo "I don't know what your choice is" && exit 0

2、

#!/bin/bash
#Program:
#    This program shows the user's choice 
#History:
#    2013/08/26  ydonghao
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH

read -p "Please input (Y/N): " yn

if [ "$yn" = "Y" ] || [ "$yn" = "y" ]; then
    echo "OK; continue "
    exit 0;
fi
if [ "$yn" = "N" ] || [ "$yn" = "n" ]; then
    echo "oh, interrupt "
    exit 0;
fi
echo "I don't know what your choice is" && exit 0