watchexec命令手册Run arbitrary commands when files change. More information: https://github.com/watchexec/watchexec.
ls -la when any file in the current directory changes:watchexec -- {{ls -la}}
make when any JavaScript, CSS and HTML files in the current directory change:watchexec --exts {{js,css,html}} make
make when any file in the lib or src subdirectories change:watchexec --watch {{lib}} --watch {{src}} {{make}}
my_server when any file in the current directory change, sending SIGKILL to stop the child process:watchexec --restart --signal {{SIGKILL}} {{my_server}}