#!/bin/bash
echo "脚本名称: $0"
echo "第一个参数: $1"
echo "第二个参数: $2"
echo "参数个数: $#"
echo "输入的参数：$*"
for key in $*
do
    echo $key;
done
for key in "$*"
 do
    echo $key
done

echo "输入的参数：$@"
for key in $@
 do
    echo $key;
done
for key in "$@"
 do
    echo $key;
done
echo "进程id: $$"
echo "状态: $?"

脚本名称: test.sh
第一个参数: a
第二个参数: b
参数个数: 2
输入的参数：a b
a
b
a b
输入的参数：a b
a
b
a
b
进程id: 8682
状态: 0