Mr Anand Babu (FSF-India Member) has developed the BiosConfig tool,
which reads/writes fields in the CMOS non-volatile store, most of
which are associated with various functions of the BIOS.
One Day One Command
tac — Concatenate and Print files in reverse order.
`tac’ copies each file to standard output, reversing the records
(lines by default) in each separately. It is doing the reverse
function of the CAT command (TAC).
$ tac myfile — Print the file (Line by Line) in reverse order.
$ tac -r -s ‘[^a-zA-z0-9-]’ myfile — Print the file (Word by Word)
in reverse order, by passing the Regular expression.
$ tac -r -s ‘.|’ myfile — Print the file (Char by Char) in reverse
Read: man tac