Question

我想在install.sh的特定目录中安装一些工具，并在test.sh中调用它们，因此我添加如下路径：

# part of install.sh
path_add()
{
    if [ -d "$1" ] && [ ":$PATH:" != *":$1:"* ]; then
        echo "add $1 to PATH"
        export PATH="$PATH:$1"
        echo $PATH
    else
        echo "$1 already existing in PATH"
    fi
}

echo表示$1已添加到$PATH，但当install.sh退出时，$PATH不包含刚刚添加的指定路径，如何永久添加它可以影响持续的shell环境？

Answer 1

# part of install.sh
path_add()
{
    if [ -d "$1" ] && [ ":$PATH:" != *":$1:"* ]; then
        echo "add $1 to PATH"

        #export PATH="$PATH:$1"
        # global
        echo "export PATH=$PATH:$1" >> /etc/profile
        # or local
        # echo "export PATH=$PATH:$1" >> ~/.profile

        echo $PATH
    else
        echo "$1 already existing in PATH"
    fi
}

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如何在shell执行退出后添加$ PATH

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