Display bar graphs of current supply levels for supported HPLIP printers.
Usage: hp-levels [DEVICE_URI|PRINTER_NAME] [MODE] [OPTIONS]
[PRINTER|DEVICE-URI]
| To specify a device-URI: | -d<device-uri> or --device=<device-uri> |
| To specify a CUPS printer: | -p<printer> or --printer=<printer> |
[MODE]
| Run in interactive mode: | -i or --interactive |
[OPTIONS]
| Set the logging level: | -l<level> or --logging=<level> |
| <level>: none, info*, error, warn, debug (*default) | |
| Run in debug mode: | -g (same as option: -ldebug) |
| This help information: | -h or --help |
| Bar graph size: | -s<size> or --size=<size> (current default=144) |
| Use colored bar graphs: | -c or --color (default is colorized) |
| Bar graph character: | -a<char> or --char=<char> (default is '/') |