小编Vik*_*kyi的帖子

我有一堆配置文件，如下所示：

reader_0 = newcamd({
name = "Oct 1",
host = "hostname 1",
port = 27020,
user = "UNAME",
pass = "password1",
key  = "0102030405060708091011121314",
})

reader_1 = newcamd({
name = "Oct 2",
host = "hostname 2",
port = 27020,
user = "UNAME",
pass = "password2",
key  = "0102030405060708091011121314",
})

如何使用sed将“reader_1”部分中的端口号 27020 替换为另一个端口号，例如 22443 ？

谢谢你。