polybar
A fast and easy-to-use status bar.
TLDR
Start Polybar (the bar name is optional if only one bar is defined in the config)
$ polybar [bar_name]
Start Polybar with the specified config
$ polybar --config=[path/to/config.ini] [bar_name]
Start Polybar and reload the bar when the configuration file is modified
$ polybar --reload [bar_name]