Raw Input

Desired Output

Section "Device"
  ### Available Driver options are:-

### Values: : integer, : float, : "True"/"False",
### : "String", : " Hz/kHz/MHz"
  ### [arg]: arg optional
  Option "NoAccel" # []
  #Option "SWcursor" # []
  Option "Dac6Bit"  # []
  #Option "Dac8Bit"  # []

Section "Device"
  Option "NoAccel" # []
  Option "Dac6Bit"  # []

Script and Comments

Script₁

[ 1] /^*(#.*)?$/d

Comments

The `-r' of GNU sed must be used to make it interpret REs as EREs.
A regular expression may be constructed according to the equivalent finite automata shown in the follows:
The primary RE constructed is ^*($|#.*$),
this can be reduced to ^*(|#.*)$,
then further to ^*(#.*)?$.