watchexec
Run arbitrary commands when files change.
TLDR
Call ls -la when any file in the current directory changes
$ watchexec -- [ls -la]
Run make when any JavaScript, CSS and HTML files in the current directory change
$ watchexec --exts [js,css,html] make
Run make when any file in the lib or src subdirectories change
$ watchexec --watch [lib] --watch [src] [make]
Call/restart my_server when any file in the current directory change, sending SIGKILL to stop the child process
$ watchexec --restart --signal [SIGKILL] [my_server]
