I've one text file and i'd like to delete lines between two specific lines then i'd like to add new lines between these two lines. I really need an expert support for correct approach how to do that.
Any help would be great! and thanks.
ifctngroup.begin ( $G_mnt_nlin ) ! $G_mnt_nlin
ifctngroup.end ( $G_mnt_nlin ) ! $G_mnt_nlin