## 節タイトル シグナルのハンドラを書く ## 対象コード - [ ] https://github.com/yurakawa/learn-system-programming-with-go/tree/master/ch12/s4/main.go - [ ] https://github.com/yurakawa/learn-system-programming-with-go/blob/master/ch12/s4-1/main.go - [ ] https://github.com/yurakawa/learn-system-programming-with-go/tree/master/ch12/s4-4 ## 補足説明
