Ubuntu – How to check the status of the CMOS battery


I have found myself in situtations where the internal battery has been used frequently. How do I check its status without diving into the mountain of directories?

NOTE I need to know about the CMOS battery. not the laptop's power supply, so this isn't a duplicate of those questions

Best Answer

$ cat /proc/driver/rtc | grep batt
batt_status     : okay