#!/bin/bash# func-cmdlinearg.sh#  調用這個腳本, 并且帶一個命令行參數. #+ 類似于 $0 arg1.func (){echo "$1"}echo "First call to function: no arg passed."echo "See if command-line arg is seen."func# 不行! 命令行參數不可見. echo "============================================================"echoecho "Second call to function: command-line arg passed explicitly."func $1# 現在可見了! exit 0