linux-tutorial/codes/shell/脚本函数/全局变量.sh
2019-10-29 18:22:19 +08:00

13 lines
175 B
Bash

#!/usr/bin/env bash
# using a global variable to pass a value
function db1 {
value=$[ $value * 2 ]
}
read -p "Enter a value: " value
db1
echo "The new value is : $value"