- uid (uid of current user) [argument: NULL]
- uptime (uptime) [argument: NULL]
- username (username of current user) [argument: NULL]
-- vol_perc (alsa volume and mute status in percent) [argument: soundcard]
+- vol_perc (oss/alsa volume status (see README)) [argument: /dev/mixer]
- wifi_perc (wifi signal in percent) [argument: wifi card interface name]
- wifi_essid (wifi essid) [argument: wifi card interface name] */
static const struct arg args[] = {