1.shell文件 find.sh

#!/bin/bash
file_name=$1
echo "$file_name"

ls -l|grep "$file_name"
r=$?

if [ $r == 1 ]; then
        echo "不存在此文件"
        #exit 1
elif [ $r == 0 ]; then
        echo "存在此文件"
        #exit 0
fi

2.执行查找

./find.sh test.sh