I want to set an environment variable when running a program via child_process.exec. Is this possible?
我想通过child_process.exec运行程序时设置一个环境变量。这可能吗？
I tried setting the env like this:
我尝试像这样设置env：
exec('FOO', {'FOO': 'ah'}, function(error, stdout, stderr) {console.log(stdout, stderr, error);});
but the resulting message said FOO did not exist.
但由此产生的消息说FOO不存在。
1 个解决方案
#1
42
You have to pass an options object that includes the key env whose value is itself an object of key value pairs.
您必须传递一个包含键值的选项对象，其值本身就是键值对的对象。
exec('echo $FOO', {env: {'FOO': 'ah'}}, function (error, stdout, stderr)
{
console.log(stdout, stderr, error);
});
#1
42
You have to pass an options object that includes the key env whose value is itself an object of key value pairs.
您必须传递一个包含键值的选项对象，其值本身就是键值对的对象。
exec('echo $FOO', {env: {'FOO': 'ah'}}, function (error, stdout, stderr)
{
console.log(stdout, stderr, error);
});