linux-tutorial/codes/shell/脚本函数/全局变量.sh

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#!/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"
update scripts and docs 2019-10-29 18:22:19 +08:00			`#!/usr/bin/env bash`
添加脚本 2019-05-10 11:17:57 +08:00
			`# using a global variable to pass a value`

			`function db1 {`
update scripts and docs 2019-10-29 18:22:19 +08:00			`value=$[ $value * 2 ]`
添加脚本 2019-05-10 11:17:57 +08:00			`}`

			`read -p "Enter a value: " value`
			`db1`
			`echo "The new value is : $value"`