Hi!

is there a command line to know about the Accurate battery state-of-charge? I use FC6 on a notebook and to save the battery I don't use any x-Windows. so I'd like to know how to know how low is the accurate battery state-of-charge without using any graphical interface.

thanks.

The information is in the virtual /proc filesystem (unless you've configured your system not to use that). Can't remember the exact files, but there's a batt under /proc somewhere, in which there are files like 'state' that give you the information. Maybe use
to locate it, and then 'cat' or 'less' or 'more' or 'most' the file to see the current contents.

/proc is a virtual filesystem (so it's not "real" in the sense your /home is), a kind of "peek hole" into the kernel. The files there give information about your system and/or kernel (cpuinfo, meminfo etc.)

you could also try:

$ acpi -b