OpenWrt_Luci_Lua/1_3.test_code/sh_test/random.sh
2015-07-02 22:53:31 +08:00

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#!/bin/sh
random_num=$(date +%s%N)
echo $random_num
#指定范围随机数
rand(){
min=$1
max=$(($2-$min+1))
num=$(date +%s%N)
echo $(($num%$max+$min))
}
random_num2=$(rand 1 3)
sleep ${random_num2}
echo $random_num2