#!/bin/bash

#Filename:bash_var_len.sh

#宣告變數

var01=1234567890

var02=”jash.liao”

#echo輸出

echo $var01

echo “var01 len= ${#var01}”

echo $var02

echo “var02 len= ${#var02}”

#printf輸出

printf “var01=%s\n var01 len=%s\n” $var01 ${#var01}

printf “var02=%s\n var02 len=%s\n” $var02 ${#var02}