Using “watch” [1] to run your program is a bad idea. The watch command executes a program at regular intervals, by default it runs once every second. What you

Using “watch” [1] to run your program is a bad idea. The watch command executes a program at regular intervals, by default it runs once every second. What you should use instead is “inotifywait” [2] to execute your program(s) whenever there is a change. This way the program will run, for example, every time you save your changes. There are many utilities that make use of inotify (the library that powers inotifywait) some of them are fsnotify [3], fswatch [4] and watchexec [5]. [1] https://linux.die.net/man/1/watch https://linux.die.net/man/1/watch [2] https://linux.die.net/man/1/inotifywait https://linux.die.net/man/1/inotifywait [3] https://github.com/fsnotify/fsnotify https://github.com/fsnotify/fsnotify (written in Go — golang) [4] https://github.com/emcrisostomo/fswatch https://github.com/emcrisostomo/fswatch (written in C++) [5] https://github.com/watchexec/watchexec https://github.com/watchexec/watchexec (written in Rust)